Zaidan Hojin Handotai Kankyu Shinkokai

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Sendai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Integrated light-triggered and light-quenched static induction thyr...
- Patent number 4,866,500
- Issue date Sep 12, 1989
- Zaidan Hojin Handotai Kankyu Shinkokai
- Jun-ichi Nishizawa
- H01 - BASIC ELECTRIC ELEMENTS