TREA

Yoshiko Tezuka

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Projection lens system
    • Patent number 5,448,408
    • Issue date Sep 5, 1995
    • Olympus Optical Co., Ltd.
    • Takayoshi Togino
    • G02 - OPTICS
  • Information Patent Grant

    Projection lens system
    • Patent number 5,260,832
    • Issue date Nov 9, 1993
    • Olympus Optical Co., Ltd.
    • Takayoshi Togino
    • G02 - OPTICS
  • Information Patent Grant

    Projection lens system
    • Patent number 5,170,207
    • Issue date Dec 8, 1992
    • Olympus Optical Co., Ltd.
    • Yoshiko Tezuka
    • G02 - OPTICS