Seiji Yamashita

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Permanent-magnetic motor having anti-cogging structure
- Patent number 5,105,113
- Issue date Apr 14, 1992
- Hitachi, Ltd.
- Hisatugu Ishikura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
D.C. Rotary machine with interpole compensation
- Patent number 4,454,460
- Issue date Jun 12, 1984
- Hitachi, Ltd.
- Kazuo Tahara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rotor of synchronous machines
- Patent number 4,250,424
- Issue date Feb 10, 1981
- Hitachi, Ltd.
- Hiroshi Sento
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER