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Tadao Osawa
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Katsuta, JP
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last 30 patents
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Patent Grant
Hot-wire type air flow meter and an internal combustion engine with...
Patent number
RE34403
Issue date
Oct 12, 1993
Hitachi, Ltd.
Nobukatsu Arai
123 - Internal-combustion engines
Information
Patent Grant
Hot-wire air flow meter
Patent number
4,986,115
Issue date
Jan 22, 1991
Hitachi, Ltd.
Yoshihito Sekine
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Hot wire type of air flow meter and internal combustion engine usin...
Patent number
4,974,445
Issue date
Dec 4, 1990
Hitachi, Ltd.
Nobukatsu Arai
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Hot-wire type air flow meter and an internal combustion engine with...
Patent number
4,887,577
Issue date
Dec 19, 1989
Hitachi, Ltd.
Nobukatsu Arai
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Intake structure of internal combustion engine with bypass intake p...
Patent number
4,790,178
Issue date
Dec 13, 1988
Hitachi, Ltd.
Toshifumi Usui
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control device for throttle valve for internal combustion engine
Patent number
4,782,805
Issue date
Nov 8, 1988
Hitachi, Ltd.
Hirotoshi Kawano
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Intake air flow sensor
Patent number
4,723,443
Issue date
Feb 9, 1988
Hitachi, Ltd.
Toshifumi Usui
G01 - MEASURING TESTING
Information
Patent Grant
Air-fuel ratio control device for internal combustion engines
Patent number
4,532,904
Issue date
Aug 6, 1985
Hitachi, Ltd.
Tadao Osawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Throttle valve linkage for use with multi-carburetor assembly
Patent number
4,397,792
Issue date
Aug 9, 1983
Hitachi, Ltd.
Toshifumi Usui
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Slow fuel controlling device for carburetor
Patent number
4,333,890
Issue date
Jun 8, 1982
Hitachi, Ltd.
Kimiji Karino
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS