Iwao Kunitomo

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Hekinan-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spark plug for internal combustion engine
- Patent number 9,000,658
- Issue date Apr 7, 2015
- NGK Spark Plug Co., Ltd.
- Iwao Kunitomo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Plasma jet ignition plug
- Patent number 8,047,172
- Issue date Nov 1, 2011
- NGK Spark Plug Co., Ltd.
- Toru Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal combustion engine
- Patent number 7,663,296
- Issue date Feb 16, 2010
- NGK Spark Plug Co., Ltd.
- Iwao Kunitomo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug in use for an internal combustion engine
- Patent number 5,831,377
- Issue date Nov 3, 1998
- NGK Spark Plug Co, Ltd.
- Yoshihiro Matsubara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multi-polarity type spark plug for use in an internal combustion en...
- Patent number 5,680,002
- Issue date Oct 21, 1997
- NGK Spark Plug Co., Ltd.
- Iwao Kunitomo
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPARK PLUG FOR INTERNAL COMBUSTION ENGINE
- Publication number 20110025186
- Publication date Feb 3, 2011
- NGK Spark Plug Co., Ltd.
- Iwao Kunitomo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PLASMA JET IGNITION PLUG
- Publication number 20090194053
- Publication date Aug 6, 2009
- NGK SPARK PLUG CO., LTD.
- Toru Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Spark plug for internal combustion engine
- Publication number 20070228916
- Publication date Oct 4, 2007
- NGK SPARK PLUG CO., LTD.
- Iwao Kunitomo
- H01 - BASIC ELECTRIC ELEMENTS