TREA

Tatsuya Okonogi

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  • Itabashi-ku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sign display apparatus
    • Patent number 5,809,676
    • Issue date Sep 22, 1998
    • Copal Company Limited
    • Katsuyuki Sukumoda
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Light-emitting diode indicator
    • Patent number D388123
    • Issue date Dec 23, 1997
    • Copal Company Limited
    • Katsuyuki Sukumoda
    • D20 - Sales and advertising equipment