TREA

Kenichi Obinata

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical disc
    • Patent number 6,010,761
    • Issue date Jan 4, 2000
    • Sony Corporation
    • Masayuki Tatewaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Optical disc
    • Patent number 5,800,864
    • Issue date Sep 1, 1998
    • Sony Corporation
    • Masayuki Tatewaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Optical disc
    • Patent number 5,186,994
    • Issue date Feb 16, 1993
    • Sony Corporation
    • Masayuki Tatewaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...