Masahiro Enuma

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spark plug manufacturing method and spark plug manufacturing apparatus
- Patent number 8,371,889
- Issue date Feb 12, 2013
- NGK Spark Plug Co., Ltd.
- Keisuke Kure
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for regulating aground electrode position in spark plug
- Patent number 7,581,998
- Issue date Sep 1, 2009
- NGK Spark Plug Co., Ltd.
- Shigeo Fujita
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPARK PLUG MANUFACTURING METHOD AND SPARK PLUG MANUFACTURING APPARATUS
- Publication number 20110171870
- Publication date Jul 14, 2011
- NGK Spark Plug Co., Ltd.
- Keisuke Kure
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and apparatus for manufacturing spark plug for internal comb...
- Publication number 20070054581
- Publication date Mar 8, 2007
- NGK SPARK PLUG CO., LTD.
- Shigeo Fujita
- H01 - BASIC ELECTRIC ELEMENTS