Inventor

KUBOTA MANABU

JP62 patents

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

KUBOTA MANABU

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

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

Method for producing railway wheel and railway wheel

Railway wheel

Crankshaft and method of manufacturing the same

Steel with excellent delayed fracture resistance and tensile strength of 1801 MPa class or more, and its shaped article

High strength bolt excellent in delayed fracture resistance and method of production of same

Crankshaft and method of manufacturing forged material for crankshaft

Railway wheel

Crankshaft

Sintered friction material for railway vehicles and method for producing the same

Brake lining for railway vehicle, disc brake system for railway vehicle including same, and sintered friction material to be used for brake lining for railway vehicle

Sintered friction material

Railway wheel

NIPPON STEEL & SUMITOMO METAL CORP

Railway wheel

Steel for carburizing, carburized steel component, and method of producing the same

Carburized steel part having excellent low cycle bending fatigue strength

Spring steel

Steel for cold forging and manufacturing method thereof

Steel for carburizing, carburized steel component, and method of producing the same

Steel for nitrocarburizing, nitrocarburized steel part, and producing method of nitrocarburized steel part

Non-heat treated steel

Hot-forging micro-alloyed steel and hot-rolled steel excellent in fracture-splitability and machinability, and component made of hot-forged microalloyed steel

Hot-rolled steel and steel component

Steel for induction hardening roughly shaped material for induction hardening

KUBOTA MANABU

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

Steel for carburizing, carburized steel component, and method of producing the same

Steel for carburizing, carburized steel component, and method of producing the same

Steel for nitrocarburizing, nitrocarburized steel part, and producing method of nitrocarburized steel part

Hot-forging micro-alloyed steel and hot-rolled steel excellent in fracture-splitability and machinability, and component made of hot-forged microalloyed steel

NIPPON TELEGRAPH & TELEPHONE

Fiber module

Communication apparatus and error detection method

MIYANISHI KEI

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

Steel material for hardening

HITACHI LTD

Fault diagnosis apparatus and fault diagnosis method of multi-channel analog input/output circuit

Communication device and communication method for plant control system

FUJITSU LTD

Moving average processing in processor and processor

Apparatus and method for multiplexing data of a layer into data transmission unit of another layer

OBAYASHI KOJI

Gears and its process of manufacture

AISIN AW CO

Steel component, gear component, and producing method for steel component

KOYAMA TATSUYA

Gas-carburized steel part excellent in surface fatigue strength, steel product for gas carburizing, and manufacturing method of gas-carburized steel part

HASHIMURA MASAYUKI

Case hardening steel and manufacturing method thereof

KOZAWA SHUJI

Steel for induction hardening and induction hardened steel part

CHIDA TETSUSHI

Steel for nitriding and nitrided part

TERAMOTO SHINYA

Spring steel and spring

SHINOHARA CHIAKI

Relay station, communication system, and communication method