P

Inventor

YONEYAMA MASAYA

JP3 patents
⚠️ This page may combine multiple inventors who share the name “YONEYAMA MASAYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JAPAN ENGINE VALVE MFG

1 patent

HONDA MOTOR CO LTD

1 patent

NIPPON SEIKI CO LTD

1 patent