Yoshikazu Hosokawa

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Hitachi, JA

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor switch
- Patent number 4,063,115
- Issue date Dec 13, 1977
- Hitachi, Ltd.
- Shinzi Okuhara
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Thyristor highly proof against time rate of change of voltage
- Patent number 3,958,268
- Issue date May 18, 1976
- Hitachi, Ltd.
- Tatsuya Kamei
- H01 - BASIC ELECTRIC ELEMENTS