TREA

Masakuni Tai

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  • Machida, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable magnification optical system
    • Patent number 6,028,715
    • Issue date Feb 22, 2000
    • Minolta Co., Ltd.
    • Katsuhiro Takamoto
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens system
    • Patent number 5,633,759
    • Issue date May 27, 1997
    • Minolta Camera Co., Ltd.
    • Hideki Nagata
    • G02 - OPTICS