Patents by Inventor Takeaki Akatsuka

Takeaki Akatsuka 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).

  • Apparatus for controlling the gap between lips of a die for extruding a plastic sheet material
    Patent number: 4124342
    Abstract: An apparatus for adjusting the gap between lips of a die for extruding a plastic sheet material. A pair of flat plates spaced from each other have a plurality of bolts for controlling the gap. The operational adjustment of each bolt is generated as an electric signal, and this electric signal is added with reference to all the bolts to distribute the gaps between the die lips. Each adjustment is changed so that the distribution of the gap between the die lips acquires a predetermined form to thereby determine the necessary amount of adjustment of each bolt.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: November 7, 1978
    Assignee: Toray Industries, Inc.
    Inventors: Takeaki Akatsuka, Katsuichi Kitagawa, Hiroyoshi Amo, Osamu Mita
  • Method and apparatus for detecting and recording abnormal conditions in the operation of spinning machines
    Patent number: 4005392
    Abstract: A method of and apparatus for controlling spinning machines comprising circulating a working machine having a detector along a rail for monitoring the running conditions of the spinning machines in which a transmitter provided in the working machine transmits a first information signal indicating the nature of possible abnormal conditions of each spinning machine to a remote station having a receiver and a computer. In the receiver, a second information signal is generated and successively stored in registers depending on the nature of the abnormal conditions in accordance with the first information signal received. The computer reads the contents of the registers only when an interrupt signal is generated which indicates that an abnormal condition has occurred in a particular spinning machine. The computer memory tabulates these data and updates the data each time the working machine circulates around the spinning machines.
    Type: Grant
    Filed: July 31, 1975
    Date of Patent: January 25, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Takeaki Akatsuka, Akinori Kato, Teiryo Kojima, Sinji Inaba, Kohichi Higashino
  • Method for controlling the gap between lips of a die for extruding a plastic sheet material
    Patent number: 3985845
    Abstract: A method and an apparatus for adjusting the gap between lips of a die for extruding a plastic sheet material. A pair of flat plates spaced from each other have a plurality of bolts for controlling the gap. The operational adjustment of each bolt is generated as an electric signal, and this electric signal is added with reference to all the bolts to distribute the gaps between the die lips. Each adjustment is changed so that the distribution of the gap between the die lips acquires a predetermined form to thereby determine the necessary amount of adjustment of each bolt.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: October 12, 1976
    Assignee: Toray Industries, Inc.
    Inventors: Takeaki Akatsuka, Katsuichi Kitagawa, Hiroyoshi Amo, Osamu Mita