Ichiro Takei

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Takasaki, JA

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor element having surface coating comprising silicon nit...
- Patent number 3,979,768
- Issue date Sep 7, 1976
- Hitachi, Ltd.
- Ichiro Takei
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of diffusing an impurity into semiconductor wafers
- Patent number 3,948,695
- Issue date Apr 6, 1976
- Hitachi, Ltd.
- Noboru Ryugo
- C30 - CRYSTAL GROWTH