Patents by Inventor Kozo Kawasaki

Kozo Kawasaki 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).

  • Flow-control type piezoelectric element valve
    Patent number: 5029610
    Abstract: A flow-control type piezoelectric element valve simplifies calibration of the gas flow rate, permits stable control of the gas flow rate and facilitates to supply a gas at stable flow rate. A gap is produced between a valve seat and a sealing portion comprising a sheet arranged on the top of the valve seat and a piezoelectric element, by applying from a current installation element to the piezoelectric element. Then a gas is introduced into a gas channel within the valve seat through the gap, pressure of the gas flowing along the gas channel is detected by means of a pressure sensor mounted near the outlet of the gas channel. According to correlation between pressure and gas flow rate in the output characteristics on the pressure sensor, the flow rate at the time when a gas flows along the gas channel can be accurately and easily calculated.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: July 9, 1991
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Hajime Hiratsuka, Kozo Kawasaki, Yasuhiko Miyo
  • Projection television receiver
    Patent number: D271200
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: November 1, 1983
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kozo Kawasaki, Hiroyuki Katada
  • Projection television receiver
    Patent number: D281604
    Type: Grant
    Filed: February 1, 1983
    Date of Patent: December 3, 1985
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kozo Kawasaki, Hiroyuki Katada