Koji Hagiwara

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Chosei, JP

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Patents Grantslast 30 patents

Information Patent Grant
Color cathode ray tube
- Patent number 6,501,214
- Issue date Dec 31, 2002
- Hitachi Ltd.
- Hideharu Sakamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray having a shadow mask structure with curl reduced...
- Patent number 6,465,942
- Issue date Oct 15, 2002
- Hitachi, Ltd.
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having an improved shadow mask
- Patent number 6,437,497
- Issue date Aug 20, 2002
- Hitachi, Ltd.
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having an improved shadow mask structure
- Patent number 6,274,974
- Issue date Aug 14, 2001
- Hitachi, Ltd.
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having a shadow mask structure with curl red...
- Patent number 6,255,765
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having shadow mask structure with curl reduc...
- Patent number 6,111,346
- Issue date Aug 29, 2000
- Hitachi, Ltd.
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Color cathode ray tube having an improved shadow mask
- Publication number 20010043035
- Publication date Nov 22, 2001
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Color cathode ray tube having a shadow mask structure with curl red...
- Publication number 20010035707
- Publication date Nov 1, 2001
- Hiroshi Ito
- H01 - BASIC ELECTRIC ELEMENTS