TREA

Yasuhiro Izumi

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Zoom lens
    • Patent number 5,794,090
    • Issue date Aug 11, 1998
    • Canon Kabushiki Kaisha
    • Shigeru Oshima
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens
    • Patent number 5,790,316
    • Issue date Aug 4, 1998
    • Canon Kabushiki Kaisha
    • Chiaki Terasawa
    • G02 - OPTICS
  • Information Patent Grant

    Device for varying braking force
    • Patent number 5,654,833
    • Issue date Aug 5, 1997
    • Canon Kabushiki Kaisha
    • Hiroshi Fujike
    • G02 - OPTICS