TREA

Taketoshi Ishihara

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  • Sohka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Visual acuity testing apparatus
    • Patent number 4,753,527
    • Issue date Jun 28, 1988
    • Kigaku Kikai Kabushiki Kaisha
    • Taketoshi Ishihara
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Refractory power measuring device
    • Patent number 4,408,847
    • Issue date Oct 11, 1983
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Shinji Wada
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Eye refractmeters using infrared rays
    • Patent number 4,306,778
    • Issue date Dec 22, 1981
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Shinji Wada
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Vision testing instrument
    • Patent number 4,299,455
    • Issue date Nov 10, 1981
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Mitsugu Aoki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Apparatus for detecting astigmatic axes and measuring refractive po...
    • Patent number 4,293,199
    • Issue date Oct 6, 1981
    • Tokyo Kogaku Kikai Kakushiki Kaisha
    • Shinzi Wada
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Eye refractmeter
    • Patent number 4,277,150
    • Issue date Jul 7, 1981
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Shinzi Wada
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Ophthalmometer
    • Patent number 4,192,582
    • Issue date Mar 11, 1980
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Mitsugu Aoki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method and device for measuring diopters of astigmatic lenses
    • Patent number 4,162,852
    • Issue date Jul 31, 1979
    • Tokyo Kogaku Kikai Kabushiki Kaisha
    • Taketoshi Ishihara
    • G01 - MEASURING TESTING