Yasushi Takeya

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Contact material for vacuum circuit interrupter
- Patent number 4,540,861
- Issue date Sep 10, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Mitsuhiro Okumura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Electrode composition for vacuum switch
- Patent number 4,537,743
- Issue date Aug 27, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Takashi Yamanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode composition for vacuum switch
- Patent number 4,499,009
- Issue date Feb 12, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Takashi Yamanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Contact for vacuum circuit breaker
- Patent number 4,486,631
- Issue date Dec 4, 1984
- Mitsubishi Denki Kabushiki Kaisha
- Eizo Naya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Windmill-shaped electrode for vacuum circuit interrupter
- Patent number 4,324,960
- Issue date Apr 13, 1982
- Mitsubishi Denki Kabushiki Kaisha
- Shin-Ichi Aoki
- H01 - BASIC ELECTRIC ELEMENTS