TREA

Tatsuo Fujiwara

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,410,603
    • Issue date Oct 18, 1983
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Kazuyoshi Yamamori
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording system
    • Patent number 4,390,907
    • Issue date Jun 28, 1983
    • Tokyo Shibaura Denki Kabushiki Kaisha
    • Tatsuo Fujiwara
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method for manufacturing a multipolar erasing head
    • Patent number 4,146,956
    • Issue date Apr 3, 1979
    • Tokyo Shibaura Electric Co., Ltd.
    • Tatsuo Fujiwara
    • G11 - INFORMATION STORAGE