TREA

Yasuo Shimizu

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotatable read/write optical head apparatus
    • Patent number 5,195,074
    • Issue date Mar 16, 1993
    • Oki Electric Industry Co., Ltd.
    • Katsushide Tanoshima
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical head
    • Patent number 5,097,456
    • Issue date Mar 17, 1992
    • Oki Electric Industry Co., Ltd.
    • Katsuhide Tanoshima
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    External magnetic field generating device
    • Patent number 4,813,007
    • Issue date Mar 14, 1989
    • Oki Electric Industry Co., Ltd.
    • Katsuhide Tanoshima
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents