Keigo Yorioka

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Patents Grantslast 30 patents

Information Patent Grant
Exhaust gas recirculation system
- Patent number 4,233,946
- Issue date Nov 18, 1980
- Aisan Industry Co., Ltd.
- Keigo Yorioka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust gas recirculation system for an internal combustion engine
- Patent number 4,203,400
- Issue date May 20, 1980
- Aisan Industry Co., Ltd.
- Keigo Yorioka
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS