Akira Tamura

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Toukai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rotary head apparatus with motor magnet and yoke surrounding motor...
- Patent number 4,875,110
- Issue date Oct 17, 1989
- Hitachi Ltd.
- Saburo Kazama
- G11 - INFORMATION STORAGE
Information Patent Grant
Permanent magnet electrical machine with reduced cogging
- Patent number 4,672,253
- Issue date Jun 9, 1987
- Hitachi, Ltd.
- Fumio Tajima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER