Patents by Inventor Kazuhiro Shiraishi

Kazuhiro Shiraishi 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).

  • Method for determining combustion condition in spark ignition internal combustion engine and combustion condition control device
    Patent number: 4976241
    Abstract: A method and device for determining and controlling the condition of a spark ignition internal combustion engine involves detecting a physical value of combustion varying in association with combustion in the combustion chamber, then calculating the heat evolution rate from the physical value, and then determining the adjusting the combustion condition in dependence on the falling area of the heat evolution rate.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: December 11, 1990
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Tetsuro Ishida, Yoshiaki Danno, Kazuhide Togai, Hiromitsu Ando, Daisuke Sanbayashi, Masato Yoshida, Kazuhiro Shiraishi, Tokihiro Tsukamoto, Jun Takemura, Eiichi Koujina
  • Method for the production of thermoplastic tubes
    Patent number: 4663107
    Abstract: A method for the production of thermoplastic tubes comprising: (1) extruding the thermoplastic tube of which the interior surface in a molten state by a heating unit disposed within the area of a mandrel near the nozzle of an extrusion mold, and (2) sliding the interior surface of the tube on an additional mandrel supported to the front end of the mandrel through a heat-insulating material in axial alignment with the hollow mandrel in a manner to bring the interior surface of the tube into contact with the smooth surface of the additional mandrel and simultaneously cooling the interior surface of the tube with a cooling medium.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: May 5, 1987
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaru Takada, Kazuhiro Shiraishi, Noboru Iida