Patents by Inventor Seiichi Sakurada

Seiichi Sakurada 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).

  • Measurement control method of an injection molding machine
    Patent number: 7798799
    Abstract: An ending target position Xes corresponding to the measurement ending position Xe, a rotation rate pattern Ar to rotate a screw 2, and a hypothetical retraction rate pattern Ab for the screw 2 to retract are set in advance, the remaining rotation rate pattern Ar to stop the screw 2 rotation at the ending target position Xes is predicated by calculation based on the screw position X detected at every specified time interval Ts at the time of measurement, based on which the screw 2 is controlled to rotate to the measurement ending position Xe, the remaining retraction rate pattern Ab to stop the screw 2 retraction at the ending target position Xe based on the screw 2 retraction rate Vd detected at every specified time interval Ts, based on which the screw 2 is controlled to retract to the measurement ending position Xe, the rotation and retraction of the screw 2 are stopped, and subsequently the screw 2 is controlled to reverse rotate by a pre-set constant amount of rotation Rc while position controlling its po
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: September 21, 2010
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Fumio Shiozawa, Tetsuo Ikeda, Kazuki Miyairi, Takashi Hakoda, Seiichi Sakurada
  • Measurement control method of an injection molding machine
    Publication number: 20080065343
    Abstract: An ending target position Xes corresponding to the measurement ending position Xe, a rotation rate pattern Ar to rotate a screw 2, and a hypothetical retraction rate pattern Ab for the screw 2 to retract are set in advance, the remaining rotation rate pattern Ar to stop the screw 2 rotation at the ending target position Xes is predicated by calculation based on the screw position X detected at every specified time interval Ts at the time of measurement, based on which the screw 2 is controlled to rotate to the measurement ending position Xe, the remaining retraction rate pattern Ab to stop the screw 2 retraction at the ending target position Xe based on the screw 2 retraction rate Vd detected at every specified time interval Ts, based on which the screw 2 is controlled to retract to the measurement ending position Xe, the rotation and retraction of the screw 2 are stopped, and subsequently the screw 2 is controlled to reverse rotate by a pre-set constant amount of rotation Rc while position controlling its po
    Type: Application
    Filed: September 11, 2007
    Publication date: March 13, 2008
    Inventors: Fumio Shiozawa, Tetsuo Ikeda, Kazuki Miyairi, Takashi Hakoda, Seiichi Sakurada
  • Adhesive composition consisting of polyvinylalcohol solution or polyvinylacetate latex modified with hydrophobic solution of isocyanate compound
    Patent number: 3931088
    Abstract: An adhesive composition is provided comprising (1) a member selected from the group consisting of an aqueous solution of polyvinylalcohol, an aqueous emulsion of vinyl acetate polymer and an aqueous latex of butadiene polymer and (2) a hydrophobic solution of an isocyanate compound or polymer.
    Type: Grant
    Filed: August 1, 1973
    Date of Patent: January 6, 1976
    Assignees: Kuraray Co., Ltd., Asahi Co., Ltd., Koyo Sangyo Co., Ltd.
    Inventors: Seiichi Sakurada, Yasuaki Miyazaki, Tatsuaki Hattori, Makoto Shiraishi, Taisei Inoue