TREA

Tsuneki Okazaki

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  • Okayama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rewritable photochromic optical disk
    • Patent number 5,252,371
    • Issue date Oct 12, 1993
    • Pioneer Electronic Corporation
    • Hitoshi Taniguchi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,155,009
    • Issue date Oct 13, 1992
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,155,008
    • Issue date Oct 13, 1992
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • C07 - ORGANIC CHEMISTRY