Tatsumasa Yamada

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Isesaki, JP

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Patents Grantslast 30 patents

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Oxygen concentration-detecting apparatus
- Patent number 5,006,221
- Issue date Apr 9, 1991
- Japan Electronic Control Systems Co., Ltd.
- Akira Uchikawa
- G01 - MEASURING TESTING
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Oxygen gas concentration-detecting apparatus and air-fuel ratio-con...
- Patent number 4,773,376
- Issue date Sep 27, 1988
- Japan Electronic Control Systems Co., Ltd.
- Akira Uchikawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS