Ritsuji Takeshita

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Hino, JP

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Patents Grantslast 30 patents

Information Patent Grant
Amplifier
- Patent number 4,543,539
- Issue date Sep 24, 1985
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transistor power amplifier circuit
- Patent number 4,503,478
- Issue date Mar 5, 1985
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Two signal amplifying system
- Patent number 4,414,514
- Issue date Nov 8, 1983
- Hitachi, Ltd.
- Kunio Seki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated circuit with at least three ground pads
- Patent number 4,403,240
- Issue date Sep 6, 1983
- Hitachi, Ltd.
- Kunio Seki
- H01 - BASIC ELECTRIC ELEMENTS