Akira Tsukada

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Takasaki, JP

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Patents Grantslast 30 patents

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Semiconductive ceramic compositions with a nonlinear volt-ampere ch...
- Patent number 4,541,974
- Issue date Sep 17, 1985
- Taiyo Yuden Co., Ltd.
- Nobutatsu Yamaoka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Semiconductive ceramic compositions with a nonlinear volt-ampere ch...
- Patent number 4,519,942
- Issue date May 28, 1985
- Taiyo Yuden Co., Ltd.
- Nobutatsu Yamaoka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES