Tsutomu Tojo

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Patents Grantslast 30 patents

Information Patent Grant
Color cathode ray tube having an improved electron gun
- Patent number 6,731,056
- Issue date May 4, 2004
- Hitachi, Ltd.
- Tsutomu Tojo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having an improved electron gun
- Patent number 6,348,759
- Issue date Feb 19, 2002
- Hitachi, Ltd.
- Tsutomu Tojo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having an improved electron gun
- Patent number 6,144,151
- Issue date Nov 7, 2000
- Hitachi, Ltd.
- Tsutomu Tojo
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Color cathode ray tube having an improved electron gun
- Publication number 20020074928
- Publication date Jun 20, 2002
- Tsutomu Tojo
- H01 - BASIC ELECTRIC ELEMENTS