Yoshio Sakamoto

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Kokubunji, JA

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Patents Grantslast 30 patents

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Direct coupling type power amplifier circuit
- Patent number 4,063,185
- Issue date Dec 13, 1977
- Hitachi, Ltd.
- Shinichi Kojima
- H03 - BASIC ELECTRONIC CIRCUITRY
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Differential amplifier
- Patent number 4,059,808
- Issue date Nov 22, 1977
- Hitachi, Ltd.
- Yoshio Sakamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
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Differential amplifier
- Patent number 4,051,443
- Issue date Sep 27, 1977
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
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Transistor amplifier circuit
- Patent number 4,047,118
- Issue date Sep 6, 1977
- Hitachi, Ltd.
- Yoshio Sakamoto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transistor circuit including source voltage ripple removal
- Patent number 4,017,749
- Issue date Apr 12, 1977
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY