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Hisakazu Okamoto
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Color cathode ray tube
Patent number
6,713,951
Issue date
Mar 30, 2004
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
CRT with neck and stem weld and method for manufacturing the same
Patent number
6,614,164
Issue date
Sep 2, 2003
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Color cathode ray tube
Patent number
6,124,669
Issue date
Sep 26, 2000
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Color cathode ray tube with convergence magnet
Patent number
6,069,438
Issue date
May 30, 2000
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Color cathode ray tube with specific placement of magnetic plate
Patent number
6,060,824
Issue date
May 9, 2000
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Color cathode ray tube
Patent number
5,708,323
Issue date
Jan 13, 1998
Kabushiki Kaisha Toshiba
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Deflection device for a color picture tube apparatus
Patent number
4,975,618
Issue date
Dec 4, 1990
Kabushiki Kaisha Toshiba
Hiroyuki Koba
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Image display device
Publication number
20060098136
Publication date
May 11, 2006
Takayuki Masunaga
G02 - OPTICS
Information
Patent Application
Image display device, method of manufacturing image display device,...
Publication number
20050179360
Publication date
Aug 18, 2005
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Color cathode ray tube
Publication number
20020158562
Publication date
Oct 31, 2002
Hisakazu Okamoto
H01 - BASIC ELECTRIC ELEMENTS