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Katsuta, JP
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last 30 patents
Information
Patent Grant
Flow rate control system
Patent number
4,895,126
Issue date
Jan 23, 1990
Hitachi, Ltd.
Torazo Nishimiya
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Automotive engine idle speed control device
Patent number
4,823,750
Issue date
Apr 25, 1989
Hitachi, Ltd.
Chiaki Niida
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Throttle valve control device for internal combustion engines
Patent number
4,747,380
Issue date
May 31, 1988
Hitachi, Ltd.
Yuki Ejiri
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Automatic control apparatus for engine throttle valve
Patent number
4,735,179
Issue date
Apr 5, 1988
Hitachi, Ltd.
Yuki Ejiri
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Closed loop type proportional electromagnetic valve for hydraulic c...
Patent number
4,669,504
Issue date
Jun 2, 1987
Hitachi, Ltd.
Yutaka Fujitsugu
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Torque motor having a coil with finite turning range
Patent number
4,639,624
Issue date
Jan 27, 1987
Hitachi, Ltd.
Yuuki Ejiri
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Idle speed control device
Patent number
4,617,889
Issue date
Oct 21, 1986
Hitachi, Ltd.
Torazo Nishimiya
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Throttle valve controlling apparatus
Patent number
4,601,271
Issue date
Jul 22, 1986
Hitachi, Ltd.
Yuuki Ejiri
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Engine control apparatus and control method
Patent number
4,547,852
Issue date
Oct 15, 1985
Hitachi, Ltd.
Hiroshi Kamifuji
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Rotational speed control apparatus for internal combustion engines
Patent number
4,522,175
Issue date
Jun 11, 1985
Hitachi, Ltd.
Hiroshi Kamifuji
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Air-fuel ratio control system for engine starting
Patent number
4,494,498
Issue date
Jan 22, 1985
Hitachi, Ltd.
Tomoo Ito
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus for enriching fuel upon engine starting operation
Patent number
4,480,618
Issue date
Nov 6, 1984
Hitachi, Ltd.
Hiroshi Kamifuji
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS