Osamu Fujita

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Patents Grantslast 30 patents

Information Patent Grant
Wide-angle arc segment magnet and brush motor containing it
- Patent number 5,170,084
- Issue date Dec 8, 1992
- Hitachi Metals Ltd.
- Osamu Fujita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rectangular magnetic circuit for speaker
- Patent number 4,412,104
- Issue date Oct 25, 1983
- Hitachi Metals, Ltd.
- Osamu Fujita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE