Katsunori Hagiwara

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Patents Grantslast 30 patents

Information Patent Grant
Plasma-jet spark plug control method and device
- Patent number 7,827,954
- Issue date Nov 9, 2010
- NGK Spark Plug Co., Ltd.
- Satoshi Nagasawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Plasma jet spark plug and ignition system for the same
- Patent number 7,714,488
- Issue date May 11, 2010
- NGK Spark Plug Co., Ltd.
- Satoshi Nagasawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Plasma-jet spark plug and ignition system
- Patent number 7,328,677
- Issue date Feb 12, 2008
- NGK Spark Plug Co., Ltd.
- Katsunori Hagiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Plasma-jet spark plug and ignition system
- Patent number 7,305,954
- Issue date Dec 11, 2007
- NGK Spark Plug Co., Ltd.
- Katsunori Hagiwara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Plasma-jet spark plug and ignition system
- Publication number 20070221156
- Publication date Sep 27, 2007
- NGK SPARK PLUG CO., LTD.
- Katsunori Hagiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Plasma-jet spark plug and ignition system
- Publication number 20070221157
- Publication date Sep 27, 2007
- NGK SPARK PLUG CO., LTD.
- Katsunori Hagiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Plasma-jet spark plug control method and device
- Publication number 20070114901
- Publication date May 24, 2007
- NGK SPARK PLUG CO., LTD.
- Satoshi Nagasawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Plasma jet spark plug and ignition system for the same
- Publication number 20070114898
- Publication date May 24, 2007
- Satoshi Nagasawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS