Inventor
KUROKAWA EIICHI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “KUROKAWA EIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DENSO CORP
37 patentsUS8052863B2Nov 8, 2011
Gas sensor control apparatus designed to ensure accuracy of measurement in gas sensor
DENSO CORP70 citations96
US6295862B1Oct 2, 2001
Gas concentration measuring apparatus compensating for error component of output signal
DENSO CORP47 citations96
US6578563B2Jun 17, 2003
Power supply control system for heater used in gas sensor
DENSO CORP24 citations93
US6478940B1Nov 12, 2002
Gas concentration sensing apparatus capable of suppressing sensor voltage oscillation
DENSO CORP21 citations93
US6442998B2Sep 3, 2002
Gas concentration measuring apparatus compensating for error component of output signal
DENSO CORP30 citations93
US6383354B1May 7, 2002
Gas concentration sensing apparatus
DENSO CORP31 citations93
US6336354B1Jan 8, 2002
Gas concentration measuring apparatus compensating for error component of output signal
DENSO CORP51 citations93
US6922639B2Jul 26, 2005
Gas concentration detecting apparatus
DENSO CORP27 citations92
US6870142B2Mar 22, 2005
Power supply control system for heater used in gas sensor
DENSO CORP26 citations92
US6547955B1Apr 15, 2003
Gas concentration measuring apparatus designed to minimize error component contained in output
DENSO CORP31 citations92
US6347544B1Feb 19, 2002
Control method for gas concentration sensor
DENSO CORP30 citations92
US6164125ADec 26, 2000
Detection of malfunction in gas concentration detection system
DENSO CORP49 citations92
US5980710ANov 9, 1999
Method and apparatus for gas concentration detection and manufacturing method of the apparatus
DENSO CORP29 citations92
US7980121B2Jul 19, 2011
Degradation simulator for gas sensor
DENSO CORP7 citations84
US7481913B2Jan 27, 2009
High-resolution gas concentration measuring apparatus
DENSO CORP14 citations84
US6996499B2Feb 7, 2006
Abnormality detecting device for gas sensor
DENSO CORP12 citations84
US6849174B2Feb 1, 2005
Gas concentration measuring apparatus designed to minimize error component contained in output
DENSO CORP13 citations84
US6720534B2Apr 13, 2004
Power supply control system for heater used in gas sensor
DENSO CORP18 citations84
US6453724B1Sep 24, 2002
Gas concentration sensing apparatus
DENSO CORP17 citations84
US7955494B2Jun 7, 2011
Gas sensor control apparatus
DENSO CORP7 citations83
US6656337B2Dec 2, 2003
Gas concentration measuring apparatus compensating for error component of output signal
DENSO CORP16 citations83
US7445698B2Nov 4, 2008
Gas concentration detecting apparatus
DENSO CORP7 citations74
US6868712B2Mar 22, 2005
Control method for gas concentration sensor
DENSO CORP11 citations74
US6740217B2May 25, 2004
Structure of gas sensor designed to minimize error of sensor output
DENSO CORP8 citations74
US6651639B2Nov 25, 2003
Heater control apparatus for a gas concentration sensor
DENSO CORP12 citations74
US6446488B1Sep 10, 2002
Gas concentration measuring apparatus producing current signals as a function of gas concentration
DENSO CORP12 citations74
US6439030B2Aug 27, 2002
Signal processing device for piezoelectric sensor
DENSO CORP9 citations74
US6226861B1May 8, 2001
Method and apparatus for gas concentration detection and manufacturing method of the apparatus
DENSO CORP7 citations74
US6067841AMay 30, 2000
Method of detecting element resistance of gas concentration sensor
DENSO CORP11 citations74
US7606654B2Oct 20, 2009
Oxygen sensor output correction apparatus for internal combustion engine
DENSO CORP7 citations72
US7288175B2Oct 30, 2007
Noiseless gas concentration measurement apparatus
DENSO CORP5 citations62
US7776194B2Aug 17, 2010
Gas concentration measuring apparatus designed to compensate for output error
DENSO CORP5 citations61
US7671600B2Mar 2, 2010
Gas concentration detection apparatus having function for detecting sensor element activation status
DENSO CORP6 citations61
US7614391B2Nov 10, 2009
Oxygen sensor output correction apparatus for internal combustion engine
DENSO CORP4 citations61
US7981265B2Jul 19, 2011
Gas concentration measuring apparatus designed to enhance measurement accuracy in desired range
DENSO CORP0 citations42
US7582197B2Sep 1, 2009
Gas concentration measuring apparatus with failure monitor
DENSO CORP0 citations42
US7578914B2Aug 25, 2009
Gas concentration measuring apparatus designed to compensate for output error
DENSO CORP0 citations42
NIPPON SOKEN
3 patentsUS7073320B2Jul 11, 2006
Fault detecting apparatus designed to detect different types of faults of gas sensor
NIPPON SOKEN28 citations91
US6895800B2May 24, 2005
Gas concentration measuring apparatus minimizing measurement error
NIPPON SOKEN11 citations71
US6901785B2Jun 7, 2005
Gas concentration measuring apparatus designed to minimize measurement error
NIPPON SOKEN5 citations60