Patents by Inventor Kazuyuki Yakushiji

Kazuyuki Yakushiji 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).

  • Package of tape type non-twisted carbon fiber bundle
    Patent number: 5499776
    Abstract: A take-up apparatus for tape type non-twisted carbon fiber bundles, in which a traverse guide unit consists of an introduction guide roller disposed so that an angle .theta..sub.1 between the introduction guide roller and the axial direction of the bobbin is substantially 90.degree., a final guide roller disposed so that an angle .theta..sub.e between it and the axial direction of the bobbin is -5.degree..+-.10.degree.(i.e., -15.degree. to +5.degree.), and at least one intermediate guide roller disposed between the introduction guide roller and final guide roller so that an angle difference between an intermediate guide roller and an adjacent guide roller is not more than 45.degree.. A take-up apparatus is also disclosed for tape type non-twisted carbon fiber bundles, in which a traverse guide unit has a helically continuing curved guide surface, an initial portion, i.e.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: March 19, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Hironobu Nojiri, Kazuyuki Yakushiji, Minoru Yoshinaga, Hiroyuki Terasaka
  • Take-up apparatus for and package of tape type non-twisted carbon fiber bundle
    Patent number: 5487512
    Abstract: A take-up apparatus is disclosed for tape type non-twisted carbon fiber bundles, in which a traverse guide unit consists of an introduction guide roller disposed so that an angle .theta..sub.1 between the introduction guide roller and the axial direction of the bobbin is substantially 90.degree., a final guide roller disposed so that an angle .theta..sub.e between it and the axial direction of the bobbin is -5.degree..+-.10.degree. (i.e., -15.degree. to +5.degree.), and at least one intermediate guide roller disposed between the introduction guide roller and final guide roller so that an angle difference between an intermediate guide roller and an adjacent guide roller is not more than 45.degree.. A take-up apparatus is also disclosed for tape type non-twisted carbon fiber bundles, in which a traverse guide unit has a helically continuing curved guide surface, an initial portion, i.e.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: January 30, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Hironobu Nojiri, Kazuyuki Yakushiji, Minoru Yoshinaga, Hiroyuki Terasaka