Seiichi Narushima

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speed control apparatus for movable equipment
- Patent number 5,023,924
- Issue date Jun 11, 1991
- Hitachi, Ltd.
- Fumio Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Speed control apparatus of movable equipment
- Patent number 4,980,617
- Issue date Dec 25, 1990
- Hitachi, Ltd.
- Fumio Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Low ripple-torque permanent magnet brushless motor
- Patent number 4,918,346
- Issue date Apr 17, 1990
- Hitachi, Ltd.
- Fumio Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling the speed of moving body
- Patent number 4,914,361
- Issue date Apr 3, 1990
- Hitachi, Ltd.
- Fumio Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER