Inventor

OCHI TATSURO

JP29 patents

⚠️ This page may combine multiple inventors who share the name “OCHI TATSURO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OCHI TATSURO

NIPPON STEEL CORP

Case hardened steel excellent in the prevention of coarsening of particles during carburizing thereof, method of manufacturing the same, and raw shaped material for carburized parts

Hot rolled steel wire rod or bar for machine structural use and method for producing the same

Cold forging steel having improved resistance to grain coarsening and delayed fracture and process for producing same

Bar or wire product for use in cold forging and method for producing the same

Long-life induction-hardened bearing steel

Outer race for constant velocity joint, having improved anti-flaking properties and shaft strength, and process for producing the same

Steel product for induction-hardened shaft component and shaft component using the same

High strength drive shaft and process for producing the same

Hot-rolled steel wire and rod for machine structural use and a method for producing the same

Steel wire rod for cold forging and method for producing the same

Cold workable steel bar or wire and process

High carbon bearing steel having a long life

Long-life carburizing bearing steel

Process for producing steel bar wire rod for cold working

Steel wire

Process for producing hot forged steel having excellent fatigue strength, yield strength, and machinability

Case-hardening steel excellent in cold forgeability and low carburization distortion property

Damper spring

Damper spring

Steel bar or wire rod for cold forging and method of producing the same

Valve spring

Valve spring

Steel material for high strength constant velocity joint intermediate shaft and high strength constant velocity joint intermediate shaft

HASHIMURA MASAYUKI

Case hardening steel and manufacturing method thereof

High strength spring-use heat treated steel

KUBOTA MANABU

Surface layer-hardened steel part and method of manufacturing the same

KOZAWA SHUJI

Carbonitrided induction hardened steel part superior in surface fatigue strength at high temperature and method of production of same

MIYANISHI KEI

Case hardening steel, carburized component, and manufacturing method of case hardening steel

SAITOH HAJIME

Forging steel