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Keiichi Sugiyama
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Shizuoka, JP
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last 30 patents
Information
Patent Grant
Intake system for internal combustion engine
Patent number
4,727,829
Issue date
Mar 1, 1988
Yamaha Hatsudoki Kabushiki Kaisha
Takeo Kondo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake system for multi-cylinder engine
Patent number
4,726,340
Issue date
Feb 23, 1988
Yamaha Hatsudoki Kabushiki Kaisha
Masatoshi Hasegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake system for internal combustion engine
Patent number
4,660,530
Issue date
Apr 28, 1987
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake control system for multi-valve type internal combustion engine
Patent number
4,576,131
Issue date
Mar 18, 1986
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake system for multiple cylinder engines
Patent number
4,567,860
Issue date
Feb 4, 1986
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake control system for multi-valve type internal combustion engine
Patent number
4,512,311
Issue date
Apr 23, 1985
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine with exhaust gas recycling system
Patent number
4,414,953
Issue date
Nov 15, 1983
Yamaha Hatsudoki Kabushiki Kaisha
Hiromitsu Matsumoto
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake device for engine
Patent number
4,381,749
Issue date
May 3, 1983
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine with exhaust gas recycling system
Patent number
4,306,533
Issue date
Dec 22, 1981
Yamaha Hatsudoki Kabushiki Kaisha
Hiromitsu Matsumoto
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake control system for internal combustion engine
Patent number
4,292,944
Issue date
Oct 6, 1981
Yamaha Hatsukoki Kabushiki Kaisha
Hiromitsu Matsumoto
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method of controlling an internal combustion engine
Patent number
4,237,828
Issue date
Dec 9, 1980
Yamaha Hatsukoko Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Induction system for an internal combustion engine
Patent number
4,232,640
Issue date
Nov 11, 1980
Yamaha Hatsukoko Kabushiki Kaisha
Hiromitsu Matsumoto
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control device for exhaust gas recycled internal combustion engine
Patent number
4,231,339
Issue date
Nov 4, 1980
Yamaha Hatsukoko Kabushiki Kaisha
Hiromitsu Matsumoto
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Device for admission of secondary air to internal combustion engine...
Patent number
4,194,477
Issue date
Mar 25, 1980
Yamaha Hatsudoki Kabushiki Kaisha
Keiichi Sugiyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS