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Patent Searching and Data


Matches 601 - 650 out of 2,150

Document Document Title
JP2008264993
To provide a device and a method for improving the surface finish and completeness of a work.The method and the device improve the surface finish and/or surface completeness of the work molded or shaped by a tool 12 to increase the surfa...  
JP2008261037
To provide a carburized component or a carbonitrided component made of steel and subjected to shot peening which has satisfactory facial fatigue strength and can response to requests for lightening, miniaturization and high stress loadin...  
JP2008260064
To enlarge the wear resistance of a hole and the other machined feature parts and also to further extend especially when those feature parts are equivalent to the limiting portion of the life of components.This method includes: a step wh...  
JP2008255470
To improve both of tooth flank strength and low cycle fatigue strength of the root of tooth, which are required for deferential gear (a carburized component).The carburized component comprises 0.10 to less than 0.30% C, 0.10% or less Si,...  
JP2008255398
To provide a steel for high-speed cold working which exhibits excellent cold workability during working and good hardness after being worked.The steel for high-speed cold working is characterized in that: it has a composition consisting ...  
JP2008246638
To efficiently carry out surface treatment of a constricting part on an element for a CVT belt with a cavitation jet.This method treats a surface of the element 1 for the CVT belt aligned by a neck part 6 extending in the vertical direct...  
JP2008248321
To provide a recovery method of resistance to twist-induced breaking of a high strength ultra-fine steel wire, the method being characterized in that the high strength ultra-fine steel wire having 3.0 wire-drawing stress after being pate...  
JP2008238260
To provide a laser surface modification apparatus that prevents attenuation of a laser beam caused by particles or the like in a transparent liquid, then, prevents deterioration in processing performance of a laser beam.The laser surface...  
JP2008238258
To provide an iron-based member excellent in inserting onto a light-metal alloy with which in the case of inserting the iron-based member onto the light-metal alloy, the generation of cracking can be prevented.In the iron-based member us...  
JP2008223071
To provide a surface treatment method for stainless steel where, though stainless, particularly, sulfur based free-cutting stainless steel such as SUS303 and SUS430 having a high sulfur content is used for securing its free-cutting, the ...  
JP2008223122
To provide a method for strengthening an alloy steel for hot-working die, preventing the generation of a heat-fatigue crack.The alloy steel for hot-working die (e.g. SKD61 steel) using a steel containing 0.32-0.42% C, 0.80-1.20% Si, 0.50...  
JP2008213038
To provide a press forging method which can impart the tensile strength, ductility, impact resistance and toughness at a certain or higher level to a steel product by eliminating porosities when a steel ingot is used as a raw material in...  
JP2008214725
To suppress the elution of sulfur contained when the surface of the stainless steel is worked, though stainless steel, particularly, sulfur based free-cutting stainless steel such as SUS303 and SUS430 having a high sulfur content for sec...  
JP2008178888
To provide a method in which a residual compressive stress is sufficiently large around the surface of a workpiece and in which the distribution region of the residual compressive stress is formed thickly on the surface of the workpiece,...  
JP2008169455
To provide a method different from a conventional method for improving fatigue strength, that is, a new working method for improving the fatigue strength by bending.The method for improving the strength of a member is provided for improv...  
JP2008163414
To provide a rolling member in which precipitation of coarse cementite along a grain boundary is restrained, and a manufacturing method for the same.This rolling member is composed of a steel material containing at least 0.1-0.35 wt.% C ...  
JP2008163951
To provide a method of reducing crack propagation in an airfoil part 22.This method includes steps of: preparing an airfoil part 22 having a root 36 spaced apart from a tip 34, spaced-apart leading and trailing edges 30 and 32, a negativ...  
JP2008156673
To provide a machine component such as a gear to be used after having been carburized, which has both an advantage of having been surface-hardened by carburization and an advantage of having been surface-strengthened by a shot-peening te...  
JP2008151235
To provide a rolling device which hardly causes damage to a raceway surface and enables a long service life.Raceway surfaces 1a, 2a of a ball bearing are subjected to superfinishing and two types of shot peening. The shot peening in whic...  
JP2008138262
To provide a method for forming a shot-peening working surface with which the shot-peening worked surface can be formed on the surface of roll device component without bringing about increases in the cost of a base stock cost and in a wo...  
JP2008133519
To form a reforming layer to a desired depth from the surface of a steel material and to simply perform this formation at a low cost.A rotating tool T rotating at high speed is brought into contact with the surface of the steel material ...  
JP2008106365
To provide a spring having a high durability in actual use and sagging resistance of the same level as or higher than conventional ones through improvement of the corrosion fatigue resistance.The spring uses as a material a steel includi...  
JP2008095188
To provide a vacuum-carburized component, suitable to the confirmation of the performance to the vacuum-carburization or a processing thereafter, a manufacturing method thereof, and a heat-treatment oil composition used for the method.In...  
JP2008087029
To provide a laser peaning apparatus which can prevent the corrosion and contamination due to the liquid for enclosing plasma, and can prevent the large quantity consumption of the liquid, and does not require a large device such as a wa...  
JP2008081821
To obtain a hardening-treatment method, in which an ultra-hardened layer which is hardened to the maximum H880 in Shore hardness can be formed for a high carbon steel material.A fine pearlitic metallic structure generated with the harden...  
JP2008082377
To elongate durability of a rolling device by suppressing increase of surface roughness and applying compression residual stress to a rolling element raceway surface applied with surface finishing.The rolling device 1 is provided with an...  
JP2008069428
To improve the durability and wear resistance of a die molding face formed with a surface layer obtained by using a carbon-solid-soluted iron material in which carbon is solid-soluted in a supersaturated state.The surface layer is formed...  
JP2008069938
To provide a gear wherein the lubricating performance of the tooth face is improved to prevent peel-off or seizure damage to the tooth face, and to provide a gearing assembly.The gear has the tooth face 1 in which micro oil pools 5 are p...  
JP2008057017
To provide a carburized component or a carbo-nitrided component made of steel having satisfactory facial fatigue strength.In the carburized component or carbo-nitrided component made of steel, the maximum height roughness Rz of a roughne...  
JP2008055310
To provide a supporting body for a hydrogen-permeable membrane for use in a fuel cell etc. and to provide a method for manufacturing a hydrogen-permeable membrane member.In the method for manufacturing a supporting body for a hydrogen-pe...  
JP2008051182
To provide a clutch release bearing device for achieving abnormal noise prevention and life improvement.The clutch release bearing device 3 comprises a clutch release bearing 10 including an inner ring 11 and an outer ring 12, and balls ...  
JP2008049367
To provide a laser peening method and an apparatus that can improve stress upto approximately 1 mm depth from the surface of a workpiece in a short time.In the laser peening method, the workpiece 3 is irradiated in the surface continuous...  
JP2008051181
To provide a clutch release bearing device for achieving abnormal noise prevention and life improvement.The clutch release bearing device 3 comprises a clutch release bearing 10 including an inner ring 11 and an outer ring 12, a guide sl...  
JP2008038222
To provide a method and an apparatus for stably improving a fatigue strength in a metallic material by which efficiency of higher fatigue strength than that of the conventional treating method can be obtained.An ultrasonic impact treatme...  
JP2008001992
To obtain a high-strength steel structural member having mechanical property as the same or higher than a blank from the high-strength steel material blank having at least 800 N/mm2 tensile strength and at least 600 N/mm2 yield strength....  
JP2007182609
To provide a rolling member having the improved endurance life in a hostile environment for use in a wheel bearing device; the wheel bearing device having the long life even in the hostile environment; and a manufacturing method therefor...  
JP2007182607
To provide a rolling member having the improved endurance life in a hostile environment for use in a constant velocity joint; to provide the constant velocity joint having the long life even in the hostile environment; and to provide a m...  
JP2007182926
To provide a needle-like roll bearing raceway member whose rolling fatigue life under a severe environment is improved, a needle-like roll bearing having a longer service lifetime even under a severe environment, and a manufacturing meth...  
JP2007163957
To provide a method of manufacturing a galvanized steel wire for optical cable by which the elastic characteristic and expansion characteristic of the galvanized steel wire for optical cable are improved while eliminating the deformation...  
JP2007138283
To provide a stainless steel material having a smooth and glossy surface at a low cost.The method for producing a stainless steel sheet comprises a process where a hot rolled sheet is subjected to shot blast treatment or scale braking tr...  
JP3965107
To provide a method for producing a metallic product in which a fluorescent material is locally incorporated into a part of the surface. In the method for producing a metallic product in which a fluorescent material is locally incorporat...  
JP2007107041
To provide a method for manufacturing a high-strength nut without causing a cost increase.This method for manufacturing a high-strength nut which is made from stainless steel and has a strength of a proof load stress of 700 N/mm2 or high...  
JP3944046
To provide a treating method for enhancing fatigue strength of welded joint while ensuring good workability in a spot welded joint of metal sheet, particularly in the spot welded joint of high strength steel sheet. In the method for enha...  
JP3940264
To provide a steel wire rod and a wire drawing rod for a spring for producing a hard-drawn spring which exhibits excellent fatigue strength and permanent set resistance in fatigue equal to those of a spring using an oil tempered steel wi...  
JP3934475
To provide high-rigidity steel with a greatly enhanced rigidity without detriment to processibility and toughness/ductility by a relatively cheap ingot method; and a high-strength high-rigidity member having high rigidity strength, espec...  
JP2007070696
To provide a stainless steel sheet having high strength and excellent ductility, wear resistance and further fatigue characteristics and most suitably used as a material for a V belt for CVT (continuously variable transmission) and also ...  
JP2007069229
To provide a tool for shock-plastic working and a working method with which a fatigue-strength of a corner part existing at the edge part of a metal is improved.In the enlarged diameter-state tool for shock-plastic working treatment, who...  
JP2007056333
To provide a method for shot-peening a nitrided member having a dense layer of a nitride formed thereon and a porous layer of the nitride formed on the dense layer when nitriding a member, by projecting a shot material against the nitrid...  
JP2007050766
To provide a bearing device for a wheel improving the fatigue life around a corner portion between a wheel attaching flange and pilot portion, suppressing increase of deflection due to the generation of crack, controlling lowering of ste...  
JP2007051354
To perform a shot-peening process to compensate the decrease of strength in the vicinity of a tooth surface edge caused by vacuum carburizing.When performing the shot-peening process after subjecting a hypoid gear 1 to vacuum carburizing...  

Matches 601 - 650 out of 2,150