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Container protector

In one embodiment of a container protector the container protector comprises two opposing side skirts, two opposing end skirts, and a interior lip connected to both side skirts and end skirts. The container protector may also include one or more handle extension to facilitate use with a container having one or more handles. The container protector is designed to sealing fit around the top periphery of a container with the interior lip extending upward to prevent material within the container from flowing outward therefrom during transitions. Such transitions may be caused by heating, transportation, or other disturbances. The precise dimensions of the container protector will vary from one embodiment to the next, and the container protector may take any shape depending on the container for which it is designed.




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Pump having stepper motor and overdrive control

Apparatus and method for supplying lubricant to a plurality of lubrication sites. Embodiments include a pump with venting and non-venting piston return, a pump with stirrer and direct feed mechanism, a pump with CAN system and self-diagnostics, a pump with heated housing and reservoir and a pump with stepper motor and overdrive control.




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Three toed footwear

An article of footwear having an upper secured to an outsole in combination having three toe pockets, the first toe pocket having a configuration to separately receive within a big toe of a wearer, and the second toe pocket having a configuration to separately receive within a second toe of the wearer, and the third toe pocket having a configuration to receive within the remaining third toe, fourth toe and fifth toe of the wearer.




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Method to display a foot ornamentation system

A method to display a foot ornamentation system includes obtaining a foot ornamentation system that has a bottom band constructed from an elastomeric material for compressing the system snugly against a foot. The system has a first side panel and a second side panel that are flexible for conforming to a contour of a foot side. The system has a decorative member with an interior surface that has a smooth profile and a non-slip surface for interfacing with the foot top surface. The method includes donning the system by expanding an interior open area of the system via the stretchable bottom band then sliding over an end of a foot into a first position where the decorative member is located on a foot top surface. The method includes donning footwear with an open top that allows the system to be displayed.




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Internally illuminated light diffusing footwear

An illumination system is housed in a footwear, the footwear including a sole and an upper. A structure and a liner form inner layers connected to the upper. A plurality of illumination sources are electrically connected to a power source and positioned adjacent to the liner. The illumination sources are positioned between the liner and upper. A batting is designed to be light diffusing, while the upper has a light diffusing section. The light emitted from the plurality of illumination sources is diffused as it passes through the batting and light diffusing section. Aesthetic designs can be creating, either through the arrangement of the plurality of illumination sources or the provision of a light impermeable section on the upper. The light impermeable section, in combination with the light diffusion section, can be used to form or outline an aesthetic design. The result is an internally illuminated footwear with diffused light.




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Multi-piece upper for athletic footwear

In one embodiment, an article of footwear includes a sole and an upper attached to the sole. The upper and sole and configured to envelop at least a portion of human foot. The upper further includes a forefoot member attached to a forefoot portion of the sole and a heel member attached to a heel portion of the sole. The forefoot member and heel member are detached from each other at a location above the sole to enable individual adjustment of the forefoot member and the heel member.




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Interchangeable cleat system for footwear

An interchangeable cleat system for an article of footwear includes an outer sole member with a plurality of fixed cleat members and a plurality of removable cleat members. The spacing between the removable cleat members and the fixed cleat members may be approximately constant in at least one portion of the article of footwear. The differences in height between the removable cleat members and the fixed cleat members may be approximately constant within a portion of the outer sole member. The cleat system can include at least three sets of cleat members that can be interchanged over different portions of the outer sole member.




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System and method for toning footwear

Systems and methods for toning footwear include a combination of a support ring, an insole with a cushioning material configured to contact a user's foot, and an outsole with one or more convex regions to create instability in the footwear. The support ring or stiffener band can be coupled to the outsole between the insole on one side and the forefoot and heel toning convexities on the other side. In some embodiments, the stiffener band can be formed of a material different from and stiffer than the material of the outsole. In accordance with various embodiments, when a user wears the toning footwear while walking, an increase in both the toning and strengthening of the calves, hamstrings and/or glutes results.




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Article of footwear with support members and connecting members

An article of footwear includes an upper and a midsole positioned beneath the upper. The midsole includes an upper portion formed of a first material and a lower portion formed of a second material and positioned beneath the upper portion. The lower portion includes a plurality of support members spaced from adjacent support members. A plurality of connecting members extend between and are connected to adjacent support members, with the connecting members having a height that is less than a height of the support members to which the connecting members are connected, and an upper surface that is substantially flush with an upper surface of the support members to which the connecting members are connected.




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Footwear with hydroplaning-resistant outsole and camouflaged toe cap

An article of footwear with a hydroplaning-resistant outsole and camouflaged toe cap is disclosed. In one example, an article of footwear includes an outsole with a ground contacting surface including a first and second plurality of angled channels angled relative to longitudinal and lateral axes of the footwear. Each angled channel in the first plurality of angled channels extends from the toe to an outer edge of a mid-foot region of the outsole, and each angled channel in the second plurality of angled channels extends from a back portion of the heel to a front portion of the heel. The ground contacting surface also includes a plurality of lateral waved grooves intersecting the first and second plurality of angled channels, and a plurality of lateral waved sipes intersecting the plurality of lateral waved grooves and the first and second plurality of angled channels.




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Article of footwear with a cavity viewing system

A sole structure for an article of footwear and a method of making the sole structure is disclosed. The sole structure can include an outsole and a midsole. The midsole includes a cavity with a protruding portion. A U-shaped transparent member is configured to cover the cavity so that the protruding portion remains visible from within the cavity.




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Article of footwear with a ball contacting member

An article of footwear with a ball contacting member is disclosed. The ball contacting member enhances the ability of a wearer to kick a ball with a low trajectory. The ball contacting member can be attached to the article of footwear in various different ways.




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Foot manifolds, apparatuses, systems, and methods for applying reduced pressure to a tissue site on a foot

Apparatuses, systems, and methods for applying reduced pressure to a tissue site on a foot are provided. An apparatus may include an insole and a tissue contacting surface covering at least a portion of the insole. At least one portion of the tissue contacting surface is removable to form a void. The apparatus may also include a reduced-pressure interface for receiving reduced pressure from a reduced-pressure source, and at least one flow channel fluidly coupled to the reduced-pressure interface and the void.




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Article of footwear with support element

An article of footwear with an undulating sole provides a different and unique ride and/or feel to the article of footwear, while also providing a unique aesthetic appeal and adequate cushioning and support. The midsole has an undulating shape substantially similar to a sine wave with a series alternating peaks and troughs, and may include one or more support elements disposed on the midsole to provide desired stiffness or cushioning properties to the midsole.




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Internally illuminated footwear component

The sole section of a shoe includes a midsole and an outsole, with the midsole being made from a translucent material. An illumination system is located inside the translucent midsole, causing the translucent midsole to be internally illuminated when the illumination system is active. Due to the translucent nature of the midsole light from the illumination system reflects internally throughout the midsole, increasing illumination. The light will also illuminate adjacent translucent components, such as the outsole if it is also made from a translucent material. Light from the illumination system can be blocked, such as by an opaque outsole or colored mold injection, and used to form an illuminated design or logo. By blacking out or covering sections of the translucent midsole, shapes and letters of visible light can be created in the negative space of the obstruction sections. This allows illuminated designs to easily be incorporated into footwear.




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Boot assembly

A boot assembly for use with a dry suit includes an external puncture resistant boot and a dual-layered insert. The dual-layered insert comprises a thermal sock worn over the foot of a diver and a water-proof, non-stretch over-sized outer sock worn over the thermal sock. The outer sock is over-sized so that it accommodates a wide spectrum of diver foot sizes but fits comfortably within the volume of the external boot.




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Footwear

Footwear according to the present disclosure includes an upper and a sole assembly coupled to the upper, with the sole assembly including an outsole with a ground-contacting surface and a midsole positioned above the outsole. The midsole includes a peripheral lasting member that defines a central aperture, and a cushioning member positioned at least above the peripheral lasting member. In some embodiments, the footwear further includes a heel and the midsole includes a heel strike projection that engages the heel. In some embodiments, the midsole further includes a shank. In some embodiments, the cushioning member defines the optional heel strike projection, and in other embodiments, the optional shank defines the optional heel strike projection. In some embodiments, the footwear includes a spur support.




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Waterproof breathable boot

A waterproof breathable boot is disclosed. The boot includes an outsole, a three-piece bootie, a toe cap, a heel cap, a center front panel, an instep panel and a rear panel.




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Article of footwear having an upper incorporating a knitted component

An article of footwear has an upper that includes a knitted component and a sole structure secured to the upper. The knitted component may define a tube formed of unitary knit construction, and a strand may extend through a length of the tube. As another example, the knitted component may have a pair of at least partially coextensive knitted layers formed of unitary knit construction, and a plurality of floating yarns may extend between the knitted layers. In some configurations, the knit type or yarn type may vary in different regions of the knitted component to impart different properties. Additionally, the knitted component may incorporate a thermoplastic yarn that is fused in different regions of the knitted component to impart different properties. A flat knitting process or a variety of other knitting processes may be utilized to form the knitted component.




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Ventilated motorcycle boot

A motorcycle boot comprises a sole or tread (22), a rigid shell (20) and an upper (52) associated with the rigid shell; the upper has furthermore a base insole (54) formed by a plurality of tubular channels (56) which extend over most of the bottom surface of the sole (54) and allow the air to pass at right angles to their axis; the shell has at the front an air intake communicating with the front end of the tubular channels.




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Smartphones app-controlled configuration of footwear soles using sensors in the smartphone and the soles

A smartphone app that causes a smartphone device to actively control a configuration of footwear structural elements located in a footwear sole or removable inner sole insert of a user of the smartphone device, and one or more sensors located in either one or both of the sole or the removable inner sole insert the user's footwear and a sensor including a gyroscope and/or an accelerometer in the smartphone device; and the footwear structural elements being configured for computer control by the smartphone device when the smartphone app is operating on the smartphone device; and wherein instructions of the smartphone app, when executed, cause the smartphone device to, first, process measurement data received from the footwear and smartphone sensors and, second, use the processed measurement data to alter a configuration of the footwear structural elements based on the output from processing measurement data.




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Support features for footwear ground engaging members

An article of footwear may include an upper and a sole structure fixedly attached to a bottom portion of the upper. The sole structure may include a sole component including a baseplate having a bottom surface and at least a first ground engaging member extending substantially downward from the bottom surface of the baseplate, the first ground engaging member having a substantially circular cross-sectional shape. In addition, the sole structure may also include a tapered support structure having a substantially pyramidal shape and extending substantially downward from the bottom surface of the baseplate, abutting the first ground engaging member at a side portion, and partially surrounding the first ground engaging member such that a portion of the first ground engaging member is exposed between edges of the tapered support structure. Also, the tapered support structure may extend downward from the baseplate less than the first ground engaging member.




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Footwear sole with midsole protrusions

Embodiments of the present invention relate to a footwear sole including a midsole and an outsole. The midsole includes of a plurality of protrusions extending downwardly from a bottom surface of the midsole toward the outsole. The outsole may include a plurality of recesses positioned to mate with a corresponding protrusion from the midsole. The outsole may also include one or more protrusion extending downwardly from the bottom of the outsole. The outsole protrusions may correspond with an associated recess of the outsole top surface. The protrusions may be hemispherical in shape at their distal ends so that a portion of the distal end may be received by the corresponding recess of the outsole top surface.




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Footwear accessory

A footwear accessory comprising a reversible footwear cover, the cover adapted to cover an article of footwear's uppers, sole and heel counter; a two sided sole attached to the cover, the sole adapted to provide both a frictional surface between the footwear and the cover and between a walking surface and the footwear; and, a cover retainer for securing the footwear cover to the footwear, the retainer being integral to the cover and adapted to be inserted into the footwear and positioned between a user's foot and the footwear.




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Article of footwear with integral upper and sole

An article of footwear with an integral upper and sole and a method of assembling the article of footwear are disclosed. The method includes folding the article of footwear from a flat configuration and attaching top and bottom lateral edges to form the article of footwear. A kit of parts containing an article of footwear with an integral upper and sole and a set of instructions is also disclosed.




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Athletic footwear with ball control portions

An article of footwear includes a first ball control portion, a second ball control portion and a third ball control portion. Each ball control portion includes a group of gripping members configured to facilitate various types of ball control. Each group of gripping members is arranged so that the ball control portions present a series of approximately continuous edges to a ball, which can help maintain a smooth trajectory for a ball.




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Wastewater effluent to geothermal heating

A wastewater geothermal heat system is supplied with processed wastewater through a drip field in proximity to a thermal array part of a geothermal heat pump system. The wastewater treatment system portion provides a periodic source of treated wastewater. Several sensors and a control system regulate a pump that discharges wastewater from the treatment system and enters a drip field where it is released into the surrounding soil. The dampened soil provides an efficient vehicle to transfer heat into or out of a thermal array which is positioned adjacent to the drip field such that it is in contact with the soil that is dampened by the discharged wastewater.




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Motor cooling system

A cooling system provided for a motor powering a compressor in a vapor compression system. The cooling system includes a housing enclosing the motor and a cavity located within the housing. A fluid circuit has a first connection with the housing configured to provide a liquid or two phase cooling fluid to the motor. The two phase cooling fluid is separable into a vapor phase portion and a liquid phase portion. The fluid circuit further has a second connection with the housing to remove cooling fluid in fluid communication with the fluid circuit. The cooling fluid conveyed through the second connection is two phase cooling fluid. The fluid circuit further has a third connection with the housing for receiving and circulating in the cavity the vapor phase portion conveyed through the second connection.




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REMOTE CONTROL SYSTEM

A remote control system includes computing boards and a control board. The control board includes a first network physical layer protocol conversion chip, a network signal switch module and a network signal processing module. The control board is electrically connected to the computing boards and communicated with a remote control manager. The first network physical layer protocol conversion chip is electrically connected to the remote control manager. The network signal switch module is electrically connected to the first network physical layer protocol conversion chip and the computing boards. The network signal processing module is electrically connected to the network signal switch module.




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COMMUNICATION SYSTEM WITH SERIAL PORTS FOR AUTOMATICALLY IDENTIFYING DEVICE TYPES AND COMMUNICATION PROTOCOLS AND METHOD THEREOF

A communication system with serial ports for automatically identifying device types and communication protocols and method thereof are described. The communication system and method are capable of automatically identifying the device types and communication protocols of interface devices with different serial device numbers which are disposed in the serial port architecture. Furthermore, the drivers are capable of performing a serial communication based on the serial port architecture for matching the device types and communication protocols correspondingly, thereby reducing the development and manufacturing costs of communication system. Moreover, the user of an application program module only needs to provide the device numbers and data control information without the cooperation of hardware circuits and manufacturing technique of the interface devices to complete the automatic control and monitoring tasks of the interface devices to increase the utilization convenience.




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METHOD AND APPARATUS FOR PROTECTING A PCI DEVICE CONTROLLER FROM MASQUERADE ATTACKS BY MALWARE

A technique allows for protecting a PCI device controller from a PCI BDF masquerade attack from Ring-0 and Ring-3 malware. The technique may use Virtualization technologies to create guest virtual machines that can use a hypervisor to allocate ACPI information from ACPI tables to a secure VM and using extended page tables (EPT) and VT-d policies to protect the MMIO memory range during illegal runtime events.




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DEVICE WITH MAGNET(S) FOR ENGAGING WITH ANOTHER DEVICE

In one aspect, a first device includes a housing, at least one system component housed by the housing, a connector coupled to the housing that engages with a second device for exchange, between the first device and the second device, of at least one of data and power, and a first magnet coupled to the housing. The first magnet is coupled to the housing so that a first pole of the first magnet faces away from the first device to repel a first pole of a second magnet coupled to the second device when the first device is juxtaposed next to the second device in a first orientation relative to the second device.




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SEMICONDUCTOR DEVICE INCLUDING A PLURALITY OF CIRCUITS AND A BUS CONNECTING THE CIRCUITS TO ONE ANOTHER, AND METHOD OF OPERATING THE SEMICONDUCTOR DEVICE

A semiconductor device includes a plurality of circuits, a general bus configured to be connected to each of the plurality of circuits and to provide a general channel among the plurality of circuits, and a designated bus configured to be connected to a subgroup of circuits from among the plurality of circuits and to provide a designated channel among the subgroup of circuits.




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Remote Resource Access Method and Switching Device

A remote resource access method and a switching device are provided. According to the remote resource access method, when a computer system access the remote physical resource device, after obtaining a first access message, including a virtual address of a virtual resource device, from a computing node in the computer system, the switching device converts the first access message into a second access message based on a physical address of a physical resource device corresponding to the virtual address of the virtual resource device. Then, the switching device sends the second access message to the remote physical resource device corresponding to the physical address using a network, thereby implementing the data transmission between the local computer system and the remote physical resource device.




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Solar collector based on carbon nanotubes and solar heating system using the same

A solar collector includes a substrate having a top surface and a bottom surface opposite to the upper surface, a sidewall, a transparent cover, and a heat-absorbing layer. The sidewall is arranged on the periphery of the top surface of the substrate. The transparent cover is disposed on the sidewall opposite to the substrate to form a sealed chamber. The heat-absorbing layer is disposed on the upper surface of the substrate and includes a carbon nanotube film having a plurality of carbon nanotubes. The carbon nanotubes in the carbon nanotube film are joined end-to-end.




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Protective grill for an infrared heater

A protective grill is provided for a portable infrared heater which reduces the possibility of a person from coming into contact with the radiation disk of the heater. The protective grill of this invention may be selectively detachably secured to the wheeled frame of a heater wherein the radiation disk thereof is positioned at one side of the wheeled frame or which may be selectively secured to the wheeled frame of the heater wherein the radiation disk of the heater is positioned at one end of the heater.




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Motor-driven unit for clearing mines from and securing a hazardous route

The present disclosure relates to a motor-driven unit for clearing mines from and securing a hazardous route. According to the present method, system and device, a marker apparatus for a secured route is a liquid material for marking on the ground, and comprising dispensing members for providing one axial marking and two side markings on either side of said axial marking, respectively, for said route.




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Methods for identifying wireless devices connected to potentially threatening devices

Techniques for determining whether a cellular device is suspect, i.e., perhaps serving as an activator for a device such as a bomb. One way of doing this with cellular telephones that are in the idle state is to use a baiting beacon to bait and automatically call all the cellular telephones in an area that are in the idle state. If the call to a given cellular telephone is not answered by a human voice, the cellular telephone is suspect. Another way of doing this with cellular telephones that are in the traffic state is to use surgical analysis to examine the DTX pattern for the telephone. If it indicates persistent silence, the cellular telephone is suspect. The surgical analysis may also be used to trace the DTX pattern back to another telephone that is controlling the suspect cellular device.




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Method of manufacturing colored shot for shot shells

A method for providing permanently colored steel shot for shot shells through anodizing and shells manufactured utilizing the shot.




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Plate heat exchanger for isothermal chemical reactors

A radial-flow plate heat exchanger (5) embedded in the catalytic bed of an isothermal chemical reactor (1) has heat exchange plates (10) comprising fluid passages (13) between a first metal sheet (20) and a second metal sheet (21) joined by perimeter weld seams (23) on a first surface (A) of the plate, a feeding channel (14) and a collecting channel (15) for the heat exchange fluid are formed with suitable metal sheets which are seam welded (25) directly to the opposite surface (B) of the plate, this structure allows the manufacturing of the plate (10) with an automated seam welding process, such as laser beam welding.




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Apparatus and method for equalizing hot fluid exit plane plate temperatures in heat exchangers

An apparatus and method for minimizing cold spots on plates of a plate-type fluid-to-fluid heat exchanger averages the plate temperature at a hot-fluid exit plane of the heat exchanger. The heat exchanger matrix is constructed to internally vary the flow patterns of opposing hot and cold fluid streams so that the heat transfer coefficient values of one or both fluid streams, designated as h, are optimized so the hot fluid value is a greater value than that of a cold fluid value. Plate variable flow structures are arranged in a manner that allows higher velocity hot fluid flow and possible lower velocity cold fluid flow in areas where the plate temperatures are coolest and the opposite configuration where plate temperatures are hottest.




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Highly aromatic compounds and polymers as precursors to carbon nanotube and metal nanoparticle compositions in shaped solids

A method of making metal nanoparticles and carbon nanotubes is disclosed. A mixture of a transition metal compound and an aromatic polymer, a precursor of an aromatic polymer, or an aromatic monomer is heated to form a metal nanoparticle composition, optionally containing carbon nanotubes.




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Device and method for changing the rotational angle position of a pneumatic tire on a wheel rim

A device for changing the rotational angle position of a pneumatic tire relative to a rim, on which the pneumatic tire is fitted to the rim, includes a manipulating device with a gripper adapted to be rotated by a positionable rotary drive mechanism and having radially adjustable gripper fingers with oppositely facing lift-off devices. Via the gripper it is possible to load a wheel into a clamping fixture, and following unseating of the tire beads from the clamped rim the pneumatic tire can be rotated relative to the rim through a computed angular difference.




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Motorcycle tire/wheel changing tool

A motorcycle wheel changing tool is presented that utilizes a rolling carriage that immobilizes the front or back wheel utilizing flat steel swing arms and a tension spring that holds the wheel in place with a knockout retaining rod through the wheel. The entire unit can be rolled and/or lifted in place to work in conjunction with a motorcycle stand. There is a folding handle that expands or contracts to accommodate different size tire/wheel widths and can pull the unit. The rolling wheels can be raised or lowered for different motorcycles depending on the height of the bike in relation to the wheel stand. Additionally, four large eye hooks can be raised or lowered to secure the wheel. Two threaded rods are utilized that secure both angle ends in place to secure the unit so that it is perpendicular to the wheel and keeps the unit from flexing.




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Tire changer with rotational position and tracking control

A tire changer machine includes a control system that monitors a rotational position of a sensitive feature associated with a wheel rim and tire during a tire change procedure. The system adjusts operation of the machine to avoid damaging the sensitive feature, which may be a valve stem or a wheel sensor such as a tire pressure monitoring system (TPMS) sensor.




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Method for surface inclusions detection, enhancement of endothelial and osteoblast cells adhesion and proliferation, sterilization of electropolished and magnetoelectropolished nitinol surfaces

The method for surface inclusions detection, enhancement of endothelial and osteoblast cells adhesion and proliferation and sterilization of electropolished and magnetoelectropolished Nitinol implantable medical device surfaces uses an aqueous solution of chemical compounds containing halogenous oxyanions as hypochlorite (ClO−) and hypobromite (BrO−) preferentially 6% sodium hypochlorite (NaClO).




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Hot-forged copper alloy part

A hot-forged copper alloy part which has a tubular shape, in which an alloy composition contains 59.0 mass % to 84.0 mass % of Cu and 0.003 mass % to 0.3 mass % of Pb with a remainder of Zn and inevitable impurities, a content of Cu [Cu] mass % and a content of Pb [Pb] mass % have a relationship of 59≦([Cu]+0.5×[Pb])≦64, a shape of the forged part satisfies a formula of 0.4≦(average inner diameter)/(average outer diameter)≦0.92, 0.04≦(average thickness)/(average outer diameter)≦0.3, and 1≦(tube axis direction length)/(average thickness))≦10, a forging material which is to be hot-forged has a tubular shape and satisfies 0.3≦(average inner diameter/average outer diameter)≦0.88, 0.06≦(average thickness)/(average outer diameter)≦0.35, and 0.8≦(tube axis direction length)/(average thickness))≦12, and 0%≦(degree of uneven thickness)≦30%, 0≦(degree of uneven thickness)≦75×1/((tube axis direction length)/(average thickness))1/2 in any location in a tube axis direction.




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Compositions promoting the accelerated degradation of metals and composite materials

A composition to decommission firearms is presented. The composition comprises a monomer, a quantity of calcium chloride; and sulfur-containing compound. The sulfur containing compound includes sodium persulfate and/or sodium thiosulfate.




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Method for manufacturing hot-rolled sheet having fine-grained ferrite, and hot-rolled sheet

A method for manufacturing a hot-rolled sheet attains grain refinement of the steel sheet whose grain size is extremely fine. In particular, a ferrite grain size of less than average 2 μm is obtained, which is not laminar but has ferrite grains with equiaxed morphology and exhibits high formability in forming. The method comprises the steps of rolling and cooling, wherein the rolling reductions, cooling steps, and temperature are closely regulated. A hot rolled sheet made from the method of manufacturing has a controlled ferrite grain in different regions of sheet thickness.




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Bearing steel being excellent both in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering

Provided is bearing steel excellent in workability after spheroidizing-annealing and in hydrogen fatigue resistance property after quenching and tempering. The bearing steel has a chemical composition containing, by mass %: 0.85% to 1.10% C; 0.30% to 0.80% Si; 0.90% to 2.00% Mn; 0.025% or less P; 0.02% or less S; 0.05% or less Al; 1.8% to 2.5% Cr; 0.15% to 0.4% Mo; 0.0080% or less N; and 0.0020% or less O, which further contains more than 0.0015% to 0.0050% or less Sb, with the balance being Fe and incidental impurities, to thereby effectively suppress the generation of WEA even in environment where hydrogen penetrates into the steel, so as to improve the roiling contact fatigue life and also the workability such as cuttability and forgeability of the material.