Inventor
ISHIHARA KOUJI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “ISHIHARA KOUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NISSAN MOTOR
5 patentsUS6167695B1Jan 2, 2001
Method and system for diagnosing deterioration of NOx catalyst
NISSAN MOTOR68 citations94
US6516612B1Feb 11, 2003
Exhaust gas purification device for an engine and A/F ratio control for early activating a NOx trapping catalyst
NISSAN MOTOR59 citations93
US6145305ANov 14, 2000
System and method for diagnosing deterioration of NOx-occluded catalyst
NISSAN MOTOR43 citations91
US6173570B1Jan 16, 2001
Exhaust gas purification device for internal combustion engine
NISSAN MOTOR16 citations82
US6006718ADec 28, 1999
Cylinder direct injection spark-ignition engine
NISSAN MOTOR12 citations72