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Takuto Nakada
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Komaki, JP
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Patents Grants
last 30 patents
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Patent Grant
Spark plug
Patent number
10,153,621
Issue date
Dec 11, 2018
NGK Spark Plug Co., Ltd.
Daisuke Sumoyama
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Spark plug
Patent number
9,853,423
Issue date
Dec 26, 2017
NGK Spark Plug Co., Ltd.
Daisuke Sumoyama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
SPARK PLUG
Publication number
20180166863
Publication date
Jun 14, 2018
NGK Spark Plug Co., Ltd.
Daisuke SUMOYAMA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Application
SPARK PLUG
Publication number
20180019581
Publication date
Jan 18, 2018
NGK SPARK PLUG CO., LTD.
Daisuke SUMOYAMA
H01 - BASIC ELECTRIC ELEMENTS