Patents by Inventor Masasi Takeda

Masasi Takeda 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).

  • Screw for use in an extruder
    Patent number: 4053143
    Abstract: There is provided a screw for use in an extruder comprising a melting section and a metering section and a decompression section therebetween so that the head pressure profile along the longitudinal direction of the extruder is higher than atmospheric pressure and has an inflection point, with the result that a high melting performance is attained and a high extrusion stability is ensured even at a high extrusion rate.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: October 11, 1977
    Assignee: Toray Industries, Inc.
    Inventors: Akira Hosokawa, Yukifusa Miyazaki, Yoshio Yada, Yasuo Kitamura, Masasi Takeda