Hiroshi Fujiwara

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Drive mechanism of engine ignition system
- Patent number 5,343,836
- Issue date Sep 6, 1994
- Hitachi, Ltd.
- Hiroshi Fujiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Knock control system
- Patent number 4,562,813
- Issue date Jan 7, 1986
- Hitachi, Ltd.
- Terumi Okado
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Pressure-responsive ignition timing controller for a supercharged i...
- Patent number 4,325,338
- Issue date Apr 20, 1982
- Hitachi, Ltd.
- Hiroshi Fujiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS