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Kunio Mizushima

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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic disc cartridge including a magnetic disc having a cleaning...
    • Patent number 5,587,860
    • Issue date Dec 24, 1996
    • Hitachi Maxell, Ltd.
    • Nobuhiro Umebayashi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Disk cartridge
    • Patent number 4,897,752
    • Issue date Jan 30, 1990
    • Hitachi Maxell, Ltd.
    • Hajime Doi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,895,758
    • Issue date Jan 23, 1990
    • Hitachi Maxell, Ltd.
    • Akito Sakemoto
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic disc
    • Patent number 4,828,925
    • Issue date May 9, 1989
    • Hitachi Maxell, Ltd.
    • Akira Miyake
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Recording disc cartridge
    • Patent number 4,709,816
    • Issue date Dec 1, 1987
    • Hitachi Maxell, Ltd.
    • Fujio Matsumoto
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Recording disc cartridge having an improved hub assembly
    • Patent number 4,695,910
    • Issue date Sep 22, 1987
    • Hitachi Maxell, Ltd.
    • Hiroshi Maruyama
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,522,885
    • Issue date Jun 11, 1985
    • Hitachi Maxell, Ltd.
    • Masaya Funahashi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,223,361
    • Issue date Sep 16, 1980
    • Hitachi Maxell, Ltd.
    • Hiroshi Zaitsu
    • G11 - INFORMATION STORAGE