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Hiroyuki Koba
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Fukaya, JP
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last 30 patents
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Patent Grant
Color cathode ray tube with small neck diameter and large stem pin...
Patent number
6,462,466
Issue date
Oct 8, 2002
Kabushiki Kaisha Toshiba
Shigeru Sugawara
H01 - BASIC ELECTRIC ELEMENTS
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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
Information
Patent Grant
Color picture tube apparatus
Patent number
4,818,919
Issue date
Apr 4, 1989
Kabushiki Kaisha Toshiba
Kenichi Kobayashi
H01 - BASIC ELECTRIC ELEMENTS