Patents by Inventor Kiyotsugu Tanaka

Kiyotsugu Tanaka 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).

  • Production device and method for opened fiber bundle and prepreg production method
    Patent number: 6743392
    Abstract: An apparatus and method for producing a spread fiber bundle using a fiber-spreading device composed of a group of rollers and a base body reciprocated to be repetitively brought into contact with and kept away from a running fiber bundle, and a method for producing a prepreg. Fiber bundle can be stably and efficiently spread even in the case where the fiber bundle to be spread are filaments having a high elastic modulus such as carbon filaments or where the carbon fiber bundle conveying speed is higher.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: June 1, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Kiyotsugu Tanaka, Hiroshi Ohtani, Hidetaka Matsumae, Seiji Tsuji, Daisaku Akase
  • Production device and method for opened fiber bundle and prepreg production method
    Publication number: 20030057585
    Abstract: An apparatus and method for producing a spread fiber bundle using a fiber-spreading device composed of a group of rollers and a base body reciprocated to be repetitively brought into contact with and kept away from a running fiber bundle, and a method for producing a prepreg. Fiber bundle can be stably and efficiently spread even in the case where the fiber bundle to be spread are filaments having a high elastic modulus such as carbon filaments or where the carbon fiber bundle conveying speed is higher.
    Type: Application
    Filed: October 12, 2001
    Publication date: March 27, 2003
    Inventors: Kiyotsugu Tanaka, Hiroshi Ohtani, Hidetaka Matsumae, Seiji Tsuji, Daisaku Akase