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Yasuhiro Miyakawa
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Nagoya, JP
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last 30 patents
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Patent Grant
Precombustion chamber construction for an internal combustion engine
Patent number
4,875,939
Issue date
Oct 24, 1989
NGK Insulators, Ltd.
Yasuhiro Miyakawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Cylinder head with ceramic precombustion chamber
Patent number
4,856,472
Issue date
Aug 15, 1989
NGK Insulators, Ltd.
Akinori Wakasa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Precombustion chamber construction for internal combustion engine
Patent number
4,844,037
Issue date
Jul 4, 1989
NGK Insulators, Ltd.
Yasuhiro Miyakawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS