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Hisashi Nishiyama

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for ultrasonic color flow mapping
    • Patent number 5,246,006
    • Issue date Sep 21, 1993
    • Hitachi Medical Corporation
    • Hiroshi Kanda
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Ultrasonic Doppler flow meter
    • Patent number 5,111,825
    • Issue date May 12, 1992
    • Hitachi Medical Corporation
    • Hisashi Nishiyama
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Pulse doppler measuring apparatus
    • Patent number 5,109,858
    • Issue date May 5, 1992
    • Hitachi, Ltd.
    • Hisashi Nishiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ultrasonic doppler flow meter
    • Patent number 5,107,466
    • Issue date Apr 21, 1992
    • Hitachi Medical Corporation
    • Hisashi Nishiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Pulse doppler flow speed meter
    • Patent number 4,995,397
    • Issue date Feb 26, 1991
    • Hitachi, Ltd.
    • Hisashi Nishiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Pulse doppler flow speed meter
    • Patent number 4,955,386
    • Issue date Sep 11, 1990
    • Hitachi, Ltd.
    • Hisashi Nishiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ultrasonic doppler flow meter
    • Patent number 4,905,206
    • Issue date Feb 27, 1990
    • Hitachi Medical Corporation
    • Hisashi Nishiyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ultrasonic doppler meter
    • Patent number 4,884,448
    • Issue date Dec 5, 1989
    • Hitachi Medical Corporation
    • Toshio Ogawa
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Ultrasonic velocity meter
    • Patent number 4,751,847
    • Issue date Jun 21, 1988
    • Hitachi Medical Corp.
    • Kageyoshi Katakura
    • G01 - MEASURING TESTING