Masako Ishida

Person

  • Kamakura, JP

Patents Grantslast 30 patents

  • Information Patent Grant

    Cathode in a cathode ray tube

    • Patent number 5,122,707
    • Issue date Jun 16, 1992
    • Mitsubishi Denki Kabushiki Kaisha
    • Hisao Nakanishi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode for electron tube

    • Patent number 4,924,137
    • Issue date May 8, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Keiji Watanabe
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Hot cathode in wire form

    • Patent number 4,897,574
    • Issue date Jan 30, 1990
    • Mitsubishi Denki Kabushiki Kaisha
    • Masato Saito
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode for electron tube

    • Patent number 4,797,593
    • Issue date Jan 10, 1989
    • Mitsubishi Denki Kabushiki Kaisha
    • Masato Saito
    • H01 - BASIC ELECTRIC ELEMENTS