Isamu Ishizawa

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Katsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Motor-driven throttle valve assembly
- Patent number RE34906
- Issue date Apr 18, 1995
- Hitachi, Ltd.
- Sigeo Tamaki
- 123 - Internal-combustion engines
Information Patent Grant
Multiple throttle mechanism for internal combustion engines
- Patent number 4,840,146
- Issue date Jun 20, 1989
- Hitachi, Ltd.
- Shozo Yanagisawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Motor-driven throttle valve assembly
- Patent number 4,809,659
- Issue date Mar 7, 1989
- Hitachi, Ltd.
- Sigeo Tamaki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus for adjusting specific volume of intake air for engine
- Patent number 4,712,531
- Issue date Dec 15, 1987
- Hitachi, Ltd.
- Isamu Ishizawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS