TREA

Kei Sato

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  • Miyagi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical apparatus
    • Patent number 6,522,487
    • Issue date Feb 18, 2003
    • Sony Corporation
    • Akihiko Memezawa
    • G02 - OPTICS
  • Information Patent Grant

    Optical apparatus
    • Patent number 6,433,942
    • Issue date Aug 13, 2002
    • Sony Corporation
    • Akihiko Memezawa
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Optical apparatus
    • Publication number 20020126402
    • Publication date Sep 12, 2002
    • Akihiko Memezawa
    • G02 - OPTICS