Hidehiro Koumura

Person

Goshogawara-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Color cathode ray tube having an improved internal magnetic shield
- Patent number 6,388,368
- Issue date May 14, 2002
- Hitachi, Ltd.
- Noriharu Matsudate
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having adjustment magnet assembly at neck po...
- Patent number 6,335,589
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Kentaro Oku
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having an improved internal magnetic shield
- Patent number 6,229,254
- Issue date May 8, 2001
- Hitachi, Ltd.
- Noriharu Matsudate
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Narrow-neck CRT having a large stem pin circle
- Patent number 6,222,311
- Issue date Apr 24, 2001
- Hitachi, Ltd.
- Hisashi Nose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having adjustment magnet assembly at the nec...
- Patent number 6,194,823
- Issue date Feb 27, 2001
- Hitachi, Ltd.
- Kentaro Oku
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Narrow-neck CRT having a large stem pin circle
- Patent number 6,078,134
- Issue date Jun 20, 2000
- Hitachi, Ltd.
- Hisashi Nose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Narrow-neck CRT having a large stem pin circle
- Patent number 5,994,830
- Issue date Nov 30, 1999
- Hitachi, Ltd.
- Hisashi Nose
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Narrow-neck CRT having a large stem pin circle
- Patent number 5,898,264
- Issue date Apr 27, 1999
- Hitachi, Ltd.
- Hisashi Nose
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Color cathode ray tube having an improved internal magnetic shield
- Publication number 20010013753
- Publication date Aug 16, 2001
- Noriharu Matsudate
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Color cathode ray tube
- Publication number 20010001530
- Publication date May 24, 2001
- Kentaro Oku
- H01 - BASIC ELECTRIC ELEMENTS

Hidehiro Koumura

Person

Patents Grantslast 30 patents

Color cathode ray tube having an improved internal magnetic shield

Color cathode ray tube having adjustment magnet assembly at neck po...

Color cathode ray tube having an improved internal magnetic shield

Narrow-neck CRT having a large stem pin circle

Color cathode ray tube having adjustment magnet assembly at the nec...

Narrow-neck CRT having a large stem pin circle

Narrow-neck CRT having a large stem pin circle

Narrow-neck CRT having a large stem pin circle

Patents Applicationslast 30 patents

Color cathode ray tube having an improved internal magnetic shield

Color cathode ray tube