Inventor
SAKAI SHOICHI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “SAKAI SHOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
6 patentsUS7975524B2Jul 12, 2011
Oxygen sensor inspection method and apparatus and oxygen sensor production method
HITACHI LTD7 citations81
US7302828B2Dec 4, 2007
Oxygen sensor
HITACHI LTD2 citations61
US6889536B2May 10, 2005
Air/fuel-ratio detecting apparatus
HITACHI LTD6 citations61
US7704358B2Apr 27, 2010
Oxygen sensor
HITACHI LTD2 citations59
US7655122B2Feb 2, 2010
Oxygen concentration detecting element
HITACHI LTD1 citations47
US7258772B2Aug 21, 2007
Oxygen sensor and method of manufacturing same
HITACHI LTD0 citations40
UNISIA JECS CORP
5 patentsUS5928303AJul 27, 1999
Diagnostic system for diagnosing deterioration of heated type oxygen sensor for internal combustion engines
UNISIA JECS CORP36 citations92
US5969230AOct 19, 1999
System and method for estimating the temperature of oxygen sensor installed in exhaust system of internal combustion engine
UNISIA JECS CORP17 citations84
US6332966B1Dec 25, 2001
Air/fuel ratio detecting arrangement
UNISIA JECS CORP17 citations83
US5722368AMar 3, 1998
Method and apparatus for adjusting the intake air flow rate of an internal combustion engine
UNISIA JECS CORP13 citations73
US6016787AJan 25, 2000
Idle rotation speed learning control apparatus and method of engine
UNISIA JECS CORP6 citations62