Inventor

KOSAKA SEIJI

JP3 patents

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

HONDA MOTOR CO LTD

2 patents

US7387101B2Jun 17, 2008

Oil pan for engine having a shield member covering an air hole of an oil sensor

HONDA MOTOR CO LTD6 citations61

US12580267B2Mar 17, 2026

Battery frame

HONDA MOTOR CO LTD0 citations46

MARUYAMA SHIGENAO

1 patent

US8511261B2Aug 20, 2013

Piston cooling device

MARUYAMA SHIGENAO6 citations58