Kouji Ishihara

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Exhaust gas purification device for an engine and A/F ratio control...
- Patent number 6,516,612
- Issue date Feb 11, 2003
- Nissan Motor Co., Ltd.
- Tarou Yokoi
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust gas purification device for internal combustion engine
- Patent number 6,173,570
- Issue date Jan 16, 2001
- Nissan Motor Co., Ltd.
- Hisashi Mitsumoto
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and system for diagnosing deterioration of NOx catalyst
- Patent number 6,167,695
- Issue date Jan 2, 2001
- Nissan Motor Co., Ltd.
- Yasuyuki Itou
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
System and method for diagnosing deterioration of NOx-occluded cata...
- Patent number 6,145,305
- Issue date Nov 14, 2000
- Nissan Motor Co., Ltd.
- Yasuyuki Itou
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Cylinder direct injection spark-ignition engine
- Patent number 6,006,718
- Issue date Dec 28, 1999
- Nissan Motor Co., Ltd.
- Kouji Ishihara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS