Hiroki Oguro

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cathode-ray tube apparatus and yoke
- Patent number 5,701,061
- Issue date Dec 23, 1997
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube apparatus and yoke
- Patent number 5,475,287
- Issue date Dec 12, 1995
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Convergence apparatus and convergence yoke used therefor
- Patent number 4,961,021
- Issue date Oct 2, 1990
- Hitachi, Ltd.
- Hiroki Oguro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron beam deflector
- Patent number 4,833,370
- Issue date May 23, 1989
- Hitachi, Ltd.
- Soichi Sakurai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Convergence correcting device capable of coma correction for use in...
- Patent number 4,725,763
- Issue date Feb 16, 1988
- Hitachi, Ltd.
- Nobutaka Okuyama
- H01 - BASIC ELECTRIC ELEMENTS