Keizou Asaoka

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor pin device with interlayer or dopant gradient
- Patent number 5,032,884
- Issue date Jul 16, 1991
- Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- Hideo Yamagishi
- H01 - BASIC ELECTRIC ELEMENTS