TREA

Yoko Miyazawa

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  • Suwa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Head-mounted image display apparatus
    • Patent number 6,538,624
    • Issue date Mar 25, 2003
    • Seiko Epson Corporation
    • Joji Karasawa
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Head-mounted image display apparatus
    • Patent number 5,739,893
    • Issue date Apr 14, 1998
    • Seiko Epson Corporation
    • Joji Karasawa
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS