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Kenji Hayashi
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Gifu, JP
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Patents Grants
last 30 patents
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Patent Grant
Sensor
Patent number
7,559,224
Issue date
Jul 14, 2009
NGK Spark Plug Co., Ltd.
Takaya Yoshikawa
G01 - MEASURING TESTING
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last 30 patents
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Patent Application
Sensor
Publication number
20070141911
Publication date
Jun 21, 2007
NGK SPARK PLUG CO., LTD.
Takaya Yoshikawa
G01 - MEASURING TESTING