TREA

Shigeo Maruyama

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  • Kawasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ophthalmologic apparatus
    • Patent number 5,116,114
    • Issue date May 26, 1992
    • Canon Kabushiki Kaisha
    • Yukitsugu Nakamura
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Supersonic ophthalmic measuring apparatus
    • Patent number 5,056,522
    • Issue date Oct 15, 1991
    • Canon Kabushiki Kaisha
    • Isao Matsumura
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Auto eye-refractometer
    • Patent number 4,421,391
    • Issue date Dec 20, 1983
    • Canon Kabushiki Kaisha
    • Isao Matsumura
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Apparatus for measuring the refractive power of the eye
    • Patent number 4,376,573
    • Issue date Mar 15, 1983
    • Canon Kabushiki Kaisha
    • Isao Matsumura
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Automatic eye-refractometer
    • Patent number 4,372,655
    • Issue date Feb 8, 1983
    • Canon Kabushiki Kaisha
    • Isao Matsumura
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Eye refractometer
    • Patent number 4,293,198
    • Issue date Oct 6, 1981
    • Canon Kabushiki Kaisha
    • Yoshimi Kohayakawa
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE