Michihiro Yamakawa

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Kariya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heater-equipped air-fuel ratio sensor
- Patent number 7,074,309
- Issue date Jul 11, 2006
- Denso Corporation
- Isao Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Heater-equipped air-fuel ratio sensor
- Patent number 6,527,928
- Issue date Mar 4, 2003
- Denso Corporation
- Isao Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Air fuel ratio sensor
- Patent number 6,258,234
- Issue date Jul 10, 2001
- Denso Corporation
- Isao Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Assembling method for a heater-equipped air-fuel ratio sensor
- Patent number 5,956,841
- Issue date Sep 28, 1999
- Denso Corporation
- Isao Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Oxygen concentration detector
- Patent number 5,948,226
- Issue date Sep 7, 1999
- Nippondenso Co., Ltd.
- Toshihiro Sakawa
- G01 - MEASURING TESTING
Information Patent Grant
Air fuel ratio sensor and method for assembling the same
- Patent number 5,874,664
- Issue date Feb 23, 1999
- Denso Corporation
- Isao Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Oxygen sensor
- Patent number 4,569,748
- Issue date Feb 11, 1986
- Nippondenso Co., Ltd.
- Michihiro Yamakawa
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Heater-equipped air-fuel ratio sensor
- Publication number 20030101569
- Publication date Jun 5, 2003
- DENSO Corporation
- Isao Watanabe
- G01 - MEASURING TESTING