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Kiyoshi Inoue
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Nagoya, JP
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Patents Grants
last 30 patents
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Patent Grant
Apparatus and method of producing spark plug
Patent number
8,156,779
Issue date
Apr 17, 2012
NGK Spark Plug Co., Ltd.
Hiroshi Ohashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of making a tubular member
Patent number
5,088,311
Issue date
Feb 18, 1992
NGK Spark Plug Co., Ltd.
Kiyoshi Inoue
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
Apparatus and Method of Producing Spark Plug
Publication number
20090007618
Publication date
Jan 8, 2009
Hiroshi Ohashi
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...