TREA

Katsuhiro Kaneko

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  • Sayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magneto-optical recording medium
    • Patent number 4,923,765
    • Issue date May 8, 1990
    • Hitachi, Ltd.
    • Shinji Takayama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Magneto-optical recording material
    • Patent number 4,880,694
    • Issue date Nov 14, 1989
    • Hitachi, Ltd.
    • Shinji Takayama
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method of forming a microscopic pattern
    • Patent number 4,288,283
    • Issue date Sep 8, 1981
    • Hitachi, Ltd.
    • Hiroshi Umezaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Magnetic bubble memory device
    • Patent number 4,262,054
    • Issue date Apr 14, 1981
    • Hitachi, Ltd.
    • Hiroshi Umezaki
    • H01 - BASIC ELECTRIC ELEMENTS