Inventor
HAMADA YASUHIKO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK INSULATORS LTD
20 patentsUS6623618B1Sep 23, 2003
Gas sensor and method for controlling the same
NGK INSULATORS LTD20 citations92
US6348141B1Feb 19, 2002
Gas sensor
NGK INSULATORS LTD49 citations92
US6290829B1Sep 18, 2001
Gas sensor
NGK INSULATORS LTD44 citations92
US6284112B1Sep 4, 2001
Gas sensor
NGK INSULATORS LTD35 citations92
US6120663ASep 19, 2000
Gas sensor
NGK INSULATORS LTD37 citations92
US6083370AJul 4, 2000
Gas sensor
NGK INSULATORS LTD25 citations92
US6059947AMay 9, 2000
Gas sensor
NGK INSULATORS LTD28 citations92
US5948963ASep 7, 1999
Gas sensor
NGK INSULATORS LTD44 citations92
US5238552AAug 24, 1993
Oxygen sensor
NGK INSULATORS LTD29 citations92
US4909922AMar 20, 1990
Heater-built-in oxygen sensor
NGK INSULATORS LTD35 citations92
US4824549AApr 25, 1989
Exhaust gas sensor for determining A/F ratio
NGK INSULATORS LTD49 citations92
US6010615AJan 4, 2000
Gas sensor and method for controlling gas sensor
NGK INSULATORS LTD17 citations84
US5976335ANov 2, 1999
Gas sensor having a function for minimizing heater leak current
NGK INSULATORS LTD19 citations84
US5012670AMay 7, 1991
Oxygen sensor
NGK INSULATORS LTD19 citations82
US4916934AApr 17, 1990
Oxygen sensors
NGK INSULATORS LTD20 citations82
US6290840B1Sep 18, 2001
Gas sensor and method for controlling gas sensor
NGK INSULATORS LTD14 citations74
US5608154AMar 4, 1997
Carbon monoxide sensor
NGK INSULATORS LTD16 citations74
US4929331AMay 29, 1990
Oxygen sensor
NGK INSULATORS LTD15 citations74
US7160435B2Jan 9, 2007
Gas sensor and method for controlling the same
NGK INSULATORS LTD5 citations73
US7655131B2Feb 2, 2010
Gas sensor and method for controlling the same
NGK INSULATORS LTD0 citations51