Seiichi Miyamoto

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Contact material for vacuum circuit breaker
- Patent number 4,927,989
- Issue date May 22, 1990
- Mitsubishi Denki Kabushiki Kaisha
- Eizo Naya
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Contact material for vacuum circuit breaker
- Patent number 4,677,264
- Issue date Jun 30, 1987
- Mitsubishi Denki Kabushiki Kaisha
- Mitsuhiro Okumura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...