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Kazuyoshi Hata

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Patents Grantslast 30 patents

  • Information Patent Grant

    Zoom lens system
    • Patent number 5,543,970
    • Issue date Aug 6, 1996
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens system
    • Patent number 5,296,968
    • Issue date Mar 22, 1994
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens system
    • Patent number 5,155,630
    • Issue date Oct 13, 1992
    • Minolta Camera Co., Ltd.
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Compact zoom lens system
    • Patent number 5,009,491
    • Issue date Apr 23, 1991
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens system
    • Patent number 4,993,814
    • Issue date Feb 19, 1991
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Zoom lens system
    • Patent number 4,984,876
    • Issue date Jan 15, 1991
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Objective lens system for optical recording type disks
    • Patent number 4,767,202
    • Issue date Aug 30, 1988
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS
  • Information Patent Grant

    Large aperature ratio zoom lens system
    • Patent number 4,720,181
    • Issue date Jan 19, 1988
    • Minolta Camera Kabushiki Kaisha
    • Kazuyoshi Hata
    • G02 - OPTICS