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Yasumasa Sunaga

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  • Iwatsuki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Objective optical system for endoscope
    • Patent number 4,598,980
    • Issue date Jul 8, 1986
    • Fuji Photo Optical Co., Ltd.
    • Yoshikazu Doi
    • G02 - OPTICS
  • Information Patent Grant

    Holographic endoscope
    • Patent number 4,589,723
    • Issue date May 20, 1986
    • Fuji Photo Optical Co., Ltd.
    • Yoshikazu Doi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Lens adapter for endoscopes
    • Patent number 4,501,477
    • Issue date Feb 26, 1985
    • Fuji Photo Optical Co., Ltd.
    • Yasumasa Sunaga
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Imaging system having vari-focal lens for use in endoscope
    • Patent number 4,488,039
    • Issue date Dec 11, 1984
    • Fuji Photo Film Co., Ltd.
    • Masamichi Sato
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Optical system for endoscopes
    • Patent number 4,425,025
    • Issue date Jan 10, 1984
    • Fuji Photo Optical Co., Ltd.
    • Yasumasa Sunaga
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE