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Colour purity

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  • CPC
  • H01J2229/5637
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2229/00Details of cathode ray tubes or electron beam tubes

Current Industry

H01J2229/5637Colour purity
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Color purity and covergence magnet for color cathode ray tube
    • Patent number 6,452,471
    • Issue date Sep 17, 2002
    • Orion Electric Co., Ltd.
    • Soo Ryong Byun
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode ray tube dynamic electron-optic eyebrow effect distortion c...
    • Patent number 5,248,920
    • Issue date Sep 28, 1993
    • Zenith Electronics Corporation
    • Norman F. Gioia
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Magnet assembly for correcting CRT misconvergence
    • Patent number 5,227,692
    • Issue date Jul 13, 1993
    • Samsung Electron Devices Co., Ltd.
    • Sunhaeng Lee
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color cathode ray tube apparatus
    • Patent number 5,177,412
    • Issue date Jan 5, 1993
    • Kabushiki Kaisha Toshiba
    • Katsusei Morohashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color picture device having magnetic pole pieces
    • Patent number 4,723,094
    • Issue date Feb 2, 1988
    • Kabushiki Kaisha Toshiba
    • Taketoshi Shimoma
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    In-line color picture tube apparatus with dynamic convergence corre...
    • Patent number 4,642,527
    • Issue date Feb 10, 1987
    • Hitachi, Ltd.
    • Koji Takahashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Color cathode ray tube device
    • Patent number 4,455,541
    • Issue date Jun 19, 1984
    • Mitsubishi Denki Kabushiki Kaisha
    • Eisho Nosaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Device for adjusting the electron beams of a color-picture tube
    • Patent number 4,377,767
    • Issue date Mar 22, 1983
    • International Standard Electric Corporation
    • Walter Kornaker
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color picture tube and method for magnetically adjusting the color...
    • Patent number 4,331,903
    • Issue date May 25, 1982
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Shigeo Takenaka
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Deflection device for use in color television receiver
    • Patent number 4,034,324
    • Issue date Jul 5, 1977
    • Tokyo Shibaura Electric Co., Ltd.
    • Shunichi Sano
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3930185
    • Patent number 3,930,185
    • Issue date Dec 30, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3912970
    • Patent number 3,912,970
    • Issue date Oct 14, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3906418
    • Patent number 3,906,418
    • Issue date Sep 16, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3899710
    • Patent number 3,899,710
    • Issue date Aug 12, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3887833
    • Patent number 3,887,833
    • Issue date Jun 3, 1975
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3879633
    • Patent number 3,879,633
    • Issue date Apr 22, 1975
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3844006
    • Patent number 3,844,006
    • Issue date Oct 29, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3810053
    • Patent number 3,810,053
    • Issue date May 7, 1974
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3763452
    • Patent number 3,763,452
    • Issue date Oct 2, 1973
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3746910
    • Patent number 3,746,910
    • Issue date Jul 17, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3689860
    • Patent number 3,689,860
    • Issue date Sep 5, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3663907
    • Patent number 3,663,907
    • Issue date May 16, 1972
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3573525
    • Patent number 3,573,525
    • Issue date Apr 6, 1971
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3356879
    • Patent number 3,356,879
    • Issue date Dec 5, 1967
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2921226
    • Patent number 2,921,226
    • Issue date Jan 12, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2882431
    • Patent number 2,882,431
    • Issue date Apr 14, 1959
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2829291
    • Patent number 2,829,291
    • Issue date Apr 1, 1958
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents