Yukihiro Izumida

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Patents Grantslast 30 patents

Information Patent Grant
Electron gun for color picture tubes having uniquely formed lens ap...
- Patent number 4,833,364
- Issue date May 23, 1989
- Hitachi, Ltd.
- Yukihiro Izumida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun for color picture tube with electrostatic focussing lens
- Patent number 4,622,491
- Issue date Nov 11, 1986
- Hitachi, Ltd.
- Yukihiro Izumida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun for color picture tube
- Patent number 4,614,894
- Issue date Sep 30, 1986
- Hitachi Ltd.
- Yukihiro Izumida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Direct-heated cathode structure
- Patent number 4,251,746
- Issue date Feb 17, 1981
- Hitachi, Ltd.
- Takao Kawamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Support structure for directly-heated cathode of cathode ray tube
- Patent number 4,195,246
- Issue date Mar 25, 1980
- Hitachi, Ltd.
- Yukihiro Izumida
- H01 - BASIC ELECTRIC ELEMENTS