Patents by Inventor Yukitoshi Chiba

Yukitoshi Chiba 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).

  • WATER-DISINTEGRABLE COMPOSITE FIBER AND METHOD FOR PRODUCING THE SAME
    Publication number: 20150284879
    Abstract: A water-disintegrable composite fiber comprising a phase containing a polyglycolic acid resin and a phase containing a polylactic acid resin with a D-lactic acid unit ratio of at least 1.0%; the two phases extending continuously in a lengthwise direction; and the composite fiber having a cross sectional area formed by the phase containing the polyglycolic acid resin having an area ration of at most 50%; and the content of the polyglycolic acid resin being from 2 to 100 parts by mass per 1 part by mass of the D-lactic acid units in the polylactic acid resin.
    Type: Application
    Filed: September 12, 2013
    Publication date: October 8, 2015
    Inventors: Takeo Takahashi, Yukitoshi Chiba, Masahiro Yamazaki, Hiroyuki Sato