Kunio Seki

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Kodaira, JA

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Patents Grantslast 30 patents

Information Patent Grant
Differential amplifier
- Patent number 4,051,443
- Issue date Sep 27, 1977
- Hitachi, Ltd.
- Kunio Seki
- 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
Information Patent Grant
Push-pull power amplifier circuit
- Patent number 4,015,215
- Issue date Mar 29, 1977
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Complementary push-pull amplifier device with protective circuit means
- Patent number 3,988,693
- Issue date Oct 26, 1976
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal composing circuit
- Patent number 3,947,637
- Issue date Mar 30, 1976
- Hitachi, Ltd.
- Kunio Seki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Constant-voltage circuit
- Patent number 3,942,128
- Issue date Mar 2, 1976
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY