Patents by Inventor Yasumasa Fukami

Yasumasa Fukami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vortex flow meter
    Patent number: 6435036
    Abstract: A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube downstream of the vortex generator, a pair of electromotive force measuring electrodes provided downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at locations upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: August 20, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshisuke Sakai, Toshihiko Matsuda, Kazuyuki Kasahara, Yasumasa Fukami, Takashi Ehara, Motohiko Matsuguma, Yasuhiko Ezaki, Masashi Yamaguchi
  • Vortex flow meter
    Publication number: 20020020225
    Abstract: A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube at the downstream of the vortex generator, a pair of electromotive force measuring electrodes provided at the downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at the upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes.
    Type: Application
    Filed: July 16, 2001
    Publication date: February 21, 2002
    Inventors: Toshisuke Sakai, Toshihiko Matsuda, Kazuyuki Kasahara, Yasumasa Fukami, Takashi Ehara, Motohiko Matsuguma, Yasuhiko Ezaki, Masashi Yamaguchi