Patents by Inventor Sasaki Koki

Sasaki Koki 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).

  • Patent number: 4534164
    Abstract: A textured yarn suitable for weaving a fabric having an improved width shrinkage is provided by a simultaneous draw-texturing process of a partially oriented polyethylene terephthalate (PET) filament. During the draw-texturing process, the yarn delivered from a main heater is adjusted to maintain a yarn temperature not less than 80.degree. C. which corresponds to a glass transition temperature of PET prior to being introduced into a false twister, whereby both the crimpability and sonic velocity of the resulting yarn are improved. A fabric woven therefrom has a good bulkiness as well as a good resiliency. Further, according to the same principal, a textured yarn having crimp unevenness suitable for producing a fabric having a surface contour is provided by varying the yarn temperature prior to being introduced into the false twister in a range between 80.degree. C. and 160.degree. C. The latter yarn has no tight spots therein and results in a natural looking fabric.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: August 13, 1985
    Assignee: Teijin Limited
    Inventors: Kuroda Toshimasa, Kimura Akio, Horiuchi Takumi, Sasaki Koki, Ikuta Terukuni