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Kiyoaki Tanaka
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Obu, JP
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last 30 patents
Information
Patent Grant
Spark plug for internal combustion engine
Patent number
5,563,469
Issue date
Oct 8, 1996
Nippondenso Co., Ltd.
Kozo Takamura
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Spark plug for internal combustion engine with recess in electrode tip
Patent number
5,202,601
Issue date
Apr 13, 1993
Nippondenso Co., Ltd.
Kozo Takamura
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Spark plug for internal combustion engine with pillar shaped electrode
Patent number
5,196,760
Issue date
Mar 23, 1993
Nippondenso Co., Ltd.
Kozo Takamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spark plug having a built-in resistor for suppressing noise signals
Patent number
5,008,584
Issue date
Apr 16, 1991
Nippondenso Co., Ltd.
Morihiro Atsumi
H01 - BASIC ELECTRIC ELEMENTS