Kouji Fukuma

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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
Deflection yoke device and color cathode ray tube using the same
- Patent number 5,523,658
- Issue date Jun 4, 1996
- Hitachi, Ltd.
- Kouji Fukuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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