Tatsuo Okumura

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Hashima-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for measuring NOx gas concentration, for dete...
- Patent number 6,923,902
- Issue date Aug 2, 2005
- NGK Spark Plug Co, Ltd.
- Masashi Ando
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for correcting a gas sensor response for moist...
- Patent number 6,743,352
- Issue date Jun 1, 2004
- NGK Spark Plug Co., Ltd.
- Masashi Ando
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for measuring NOx gas concentration
- Patent number 6,695,964
- Issue date Feb 24, 2004
- NGK Spark Plug Co., Ltd.
- Masashi Ando
- G01 - MEASURING TESTING
Information Patent Grant
Methods and apparatus for measuring NOx gas concentration, for dete...
- Patent number 6,375,828
- Issue date Apr 23, 2002
- NGK Spark Plug Co., Ltd.
- Masashi Ando
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method and apparatus for measuring NOx gas concentration
- Patent number 6,214,208
- Issue date Apr 10, 2001
- NGK Spark Plug Co., Ltd.
- Masashi Ando
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Methods and apparatus for measuring NOx gas concentration, for dete...
- Publication number 20030042151
- Publication date Mar 6, 2003
- NGK SPARK PLUG CO., LTD.
- Masashi Ando
- G01 - MEASURING TESTING
Information Patent Application
Methods and apparatus for measuring NOx gas concentration, for dete...
- Publication number 20020130053
- Publication date Sep 19, 2002
- NGK SPARK PLUG CO., LTD.
- Masashi Ando
- G01 - MEASURING TESTING
Information Patent Application
METHODS AND APPARATUS FOR MEASURING NOX GAS CONCENTRATION, FOR DETE...
- Publication number 20020017467
- Publication date Feb 14, 2002
- MASASHI ANDO
- G01 - MEASURING TESTING