TREA

Akira Ohya

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Test system for optical disks
    • Patent number 4,850,695
    • Issue date Jul 25, 1989
    • Yokogawa Electric Corporation
    • Kenta Mikuriya
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Test system for optical disks
    • Patent number 4,832,487
    • Issue date May 23, 1989
    • Yokogawa Electric Corporation
    • Kenta Mikuriya
    • G11 - INFORMATION STORAGE