TREA

Tatsuro Sakai

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical recording medium
    • Patent number 5,391,413
    • Issue date Feb 21, 1995
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,336,584
    • Issue date Aug 9, 1994
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,328,741
    • Issue date Jul 12, 1994
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,328,802
    • Issue date Jul 12, 1994
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Recording medium
    • Patent number 5,326,679
    • Issue date Jul 5, 1994
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Write once read many type optical disc
    • Patent number 5,204,153
    • Issue date Apr 20, 1993
    • Pioneer Electronic Corporation
    • Fumio Matsui
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Optical recording medium
    • Patent number 5,204,220
    • Issue date Apr 20, 1993
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE
  • 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
  • Information Patent Grant

    Information recording medium
    • Patent number 5,151,310
    • Issue date Sep 29, 1992
    • Pioneer Electronic Corporation
    • Shuichi Yanagisawa
    • G11 - INFORMATION STORAGE