Patents by Inventor Yasuo Yamashita

Yasuo Yamashita 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: 4613529
    Abstract: The present invention provides an artificial fur of a rising hair structure formed by implanting pile fibers through a base fabric, characterized in that the pile fibers are inclined generally longitudinally, as viewed from above the surface, the pile fibers in the widthwise central section of the rising hair structure extend in parallel to the longitudinal direction, the pile fibers in the opposite peripheral sections extend diagonally widthwise with respect to the longitudinal direction and the pile fibers in the outermost sections of the rising hair structure extend diagonally at angles in the range from 10 to 80 degrees with respect to the longitudinal direction of the rising hair structure. The present invention enables stable and economic mass production of such an artificial fur by means of a liquid-flow treatment machine.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: September 23, 1986
    Assignee: Toray Industries, Inc.
    Inventors: Yasuo Yamashita, Yoshiteru Kiyomura, Shunroku Tohyama
  • Patent number: 4245992
    Abstract: A fabric of cellulosic fibers, particularly natural cellulosic fibers, of improved dyeability having a polymer of a monomer containing a quarternary amine group dispersed in the fibers with no phase separation is discharge printed. The improved cellulosic fibers can be prepared by impregnating a monomer containing a quarternary amine group into cellulosic fibers and polymerizing the monomer in the fibers. This treatment of cellulosic fibers with the polymer of a quarternary amine monomer can be advantageously utilized in the discharge printing of a fabric from a blend of hydrophobic synthetic/cellulosic fibers.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: January 20, 1981
    Assignee: Toray Industries, Inc.
    Inventors: Yasuo Yamashita, Masami Ikeyama, Takao Nishikawa