Katsumi Hirota

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Urayasu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Projection type cathode ray tube device
- Patent number 7,015,634
- Issue date Mar 21, 2006
- Hitachi Displays, Ltd.
- Sakae Watanabe
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Projection type cathode ray tube device
- Publication number 20040004428
- Publication date Jan 8, 2004
- Sakae Watanabe
- H01 - BASIC ELECTRIC ELEMENTS