Yasuji Kamata

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Amplifier and display using the former
- Patent number 4,888,561
- Issue date Dec 19, 1989
- Hitachi, Ltd.
- Ryushi Shimokawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier and display using the former
- Patent number 4,755,768
- Issue date Jul 5, 1988
- Hitachi, Ltd.
- Ryushi Shimokawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable-gain amplifying circuit
- Patent number 4,646,029
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Yasuji Kamata
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
CRT picture display apparatus
- Patent number 4,638,308
- Issue date Jan 20, 1987
- Hitachi, Ltd.
- Hiroshi Kuwabara
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Critical temperature sensitive resistor material
- Patent number 4,603,008
- Issue date Jul 29, 1986
- Hitachi, Ltd.
- Hiromi Tosaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube driving apparatus
- Patent number 4,438,366
- Issue date Mar 20, 1984
- Hitachi, Ltd.
- Yasuji Kamata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Convergence distortion correction method and apparatus for color ca...
- Patent number 4,401,922
- Issue date Aug 30, 1983
- Hitachi, Ltd.
- Yasuji Kamata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE