Hirotsugu Kozuka

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Sekimachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of making three dimensional semiconductor devices in selecti...
- Patent number 4,609,407
- Issue date Sep 2, 1986
- Hitachi, Ltd.
- Tamura Masao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of diffusing an impurity
- Patent number 4,373,975
- Issue date Feb 15, 1983
- Hitachi, Ltd.
- Mitsuo Nanba
- H01 - BASIC ELECTRIC ELEMENTS