Manufacture of heaters for indirectly-heated cathodes

Patents Grantslast 30 patents

  • Information Patent Grant

    Heaters for hollow cathodes

    • Patent number 11,488,799
    • Issue date Nov 1, 2022
    • PIPL LIMITED
    • Maxym Polyakov
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Tungsten wire, cathode heater and vibration service lamp filament

    • Patent number 9,236,212
    • Issue date Jan 12, 2016
    • Kabushiki Kaisha Toshiba
    • Takashi Tanaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for fabricating cathode structure for cathode ray tube

    • Patent number 6,626,726
    • Issue date Sep 30, 2003
    • Samsung SDI Co., Ltd.
    • Sung-hwan Moon
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Methods of manufacturing heater and cathode-ray tube comprising the...

    • Patent number 6,294,065
    • Issue date Sep 25, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Masaki Kawasaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode heater and cathode assembly for microwave power tubes

    • Patent number 5,350,969
    • Issue date Sep 27, 1994
    • Litton Systems, Inc.
    • Todd R. Gattuso
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Thin high temperature heater

    • Patent number 5,155,340
    • Issue date Oct 13, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Noriko Morita
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Inorganically insulated heater, and cathode ray tube and air flow s...

    • Patent number 5,138,221
    • Issue date Aug 11, 1992
    • Hitachi, Ltd.
    • Toshiaki Arato
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Heater for indirectly-heated cathode

    • Patent number 5,038,071
    • Issue date Aug 6, 1991
    • Hitachi, Ltd.
    • Sachio Koizumi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Supporting structure for an electron gun heater

    • Patent number 5,021,709
    • Issue date Jun 4, 1991
    • Samsung Electron Devices Co. Ltd.
    • Tae-sik Oh
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of applying a thermally black layer to a heating member for...

    • Patent number 4,983,420
    • Issue date Jan 8, 1991
    • U.S. Philips Corporation
    • Stefan M. Wolfrum
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of producing dark heater

    • Patent number 4,844,942
    • Issue date Jul 4, 1989
    • Hitachi, Ltd.
    • Sachio Koizumi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Low consumption electron gun for cathode ray tubes

    • Patent number 4,825,119
    • Issue date Apr 25, 1989
    • Videocolor
    • Maryvonne Penelon
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of manufacturing a coil heater of an indirectly-heated type...

    • Patent number 4,149,104
    • Issue date Apr 10, 1979
    • Hitachi, Ltd.
    • Norihisa Yoshimori
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of making cathode heaters

    • Patent number 4,126,489
    • Issue date Nov 21, 1978
    • Varian Associates, Inc.
    • Paul D. Williams
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method of producing an insulating material for coating cathode heat...

    • Patent number 3,941,707
    • Issue date Mar 2, 1976
    • International Standard Electric Corporation
    • Eberhard Weiss
    • H01 - BASIC ELECTRIC ELEMENTS
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    3902093

    • Patent number 3,902,093
    • Issue date Aug 26, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3852105

    • Patent number 3,852,105
    • Issue date Dec 3, 1974
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    3808043

    • Patent number 3,808,043
    • Issue date Apr 30, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3770601

    • Patent number 3,770,601
    • Issue date Nov 6, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3765939

    • Patent number 3,765,939
    • Issue date Oct 16, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3737714

    • Patent number 3,737,714
    • Issue date Jun 5, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3450565

    • Patent number 3,450,565
    • Issue date Jun 17, 1969
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3418164

    • Patent number 3,418,164
    • Issue date Dec 24, 1968
    • H01 - BASIC ELECTRIC ELEMENTS
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    3323916

    • Patent number 3,323,916
    • Issue date Jun 6, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
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    3280452

    • Patent number 3,280,452
    • Issue date Oct 25, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
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    3263114

    • Patent number 3,263,114
    • Issue date Jul 26, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
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    3245132

    • Patent number 3,245,132
    • Issue date Apr 12, 1966
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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    3226806

    • Patent number 3,226,806
    • Issue date Jan 4, 1966
    • H01 - BASIC ELECTRIC ELEMENTS
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    3161540

    • Patent number 3,161,540
    • Issue date Dec 15, 1964
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3134691

    • Patent number 3,134,691
    • Issue date May 26, 1964
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents