P

Inventor

MOTOOKA NAOKI

JP5 patents
⚠️ This page may combine multiple inventors who share the name “MOTOOKA NAOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO ELECTRIC INDUSTRIES

3 patents
US4671491AJun 9, 1987

Valve-seat insert for internal combustion engines and its production

SUMITOMO ELECTRIC INDUSTRIES25 citations92
US4546737AOct 15, 1985

Valve-seat insert for internal combustion engines

SUMITOMO ELECTRIC INDUSTRIES44 citations88
US5125811AJun 30, 1992

Sintered iron-base alloy vane for compressors

SUMITOMO ELECTRIC INDUSTRIES12 citations69

TOYOTA MOTOR CORP

1 patent
US4734968AApr 5, 1988

Method for making a valve-seat insert for internal combustion engines

TOYOTA MOTOR CORP33 citations92

SUMOTOMO ELECTRIC IND

1 patent
US4915735AApr 10, 1990

Wear-resistant sintered alloy and method for its production

SUMOTOMO ELECTRIC IND8 citations66