Atsushi Tsuruoka

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Mobara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube having an internal voltage-dividing resistor
- Patent number 6,495,952
- Issue date Dec 17, 2002
- Hitachi, Ltd.
- Hisao Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having an internal voltage-dividing resistor
- Patent number 6,433,469
- Issue date Aug 13, 2002
- Hitachi, Ltd.
- Atsushi Tsuruoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube
- Patent number 6,294,872
- Issue date Sep 25, 2001
- Hitachi, Ltd.
- Atsushi Tsuruoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having improved beam convergence
- Patent number 5,798,603
- Issue date Aug 25, 1998
- Hitachi, Ltd.
- Atsushi Tsuruoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube with improved main lens
- Patent number 5,659,225
- Issue date Aug 19, 1997
- Hitachi, Ltd.
- Atsushi Tsuruoka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun and cathode-ray tube comprising the same
- Patent number 5,461,278
- Issue date Oct 24, 1995
- Hitachi, Ltd.
- Masayoshi Misono
- H01 - BASIC ELECTRIC ELEMENTS