Inventor

MATSUNUMA KENJI

JP25 patents

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

MATSUNUMA KENJI

SUMITOMO ELECTRIC INDUSTRIES

Slide member and method of manufacturing the same

Particulate trap for a diesel engine

Exhaust gas purifier and operating method thereof

Composite bearing structure

Silicon nitride sintered body

Method of machining silicon nitride ceramics and silicon nitride ceramics products

Composite bearing structure

Silicon nitride sintered body and process for producing the same

Valve-open-close mechanism

Particulate trap for diesel engine

Ceramic adjusting shim

Silicon nitride sintered body and process for producing the same

High strength silicon nitride sintered body and process for producing same

Silicon nitride sintered body and process for producing the same

Combination of adjusting shim and cam

Slide member and method of manufacturing the same

Facility for grinding silicon nitride ceramic workpiece

Method of machining silicon nitride ceramics and silicon nitride ceramics products

Sintered silicon nitride bodies suitable for use as high impact materials

High strength silicon nitride sintered body and process for producing same

Process for production of sintered silicon nitride made article

Adjusting shim

ITAMI WORKS OF SUMITOMO ELECTR

Electromagnetic actuator

Electromagnetic actuator and valve-open-close mechanism

Electromagnetic actuator and valve-open-close mechanism