Inventor

KAWASHIMA MASAMI

JP4 patents

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

JAPAN ELECTRONIC CONTROL SYST

2 patents

US5006221AApr 9, 1991

Oxygen concentration-detecting apparatus

JAPAN ELECTRONIC CONTROL SYST22 citations88

US4773376ASep 27, 1988

Oxygen gas concentration-detecting apparatus and air-fuel ratio-controlling apparatus using same in internal combustion engine

JAPAN ELECTRONIC CONTROL SYST17 citations69

HITACHI LTD

2 patents

US7975524B2Jul 12, 2011

Oxygen sensor inspection method and apparatus and oxygen sensor production method

HITACHI LTD7 citations81

US7302828B2Dec 4, 2007

Oxygen sensor

HITACHI LTD2 citations61