Patents by Inventor Fumiki Takabayashi

Fumiki Takabayashi 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).

  • Process for preparation of electroconductive composite fiber
    Patent number: 4756926
    Abstract: An electroconductive core-sheath composite fiber comprising a core containing an electroconductive substance and a sheath formed of a fiber-forming polymer, which surrounds the core, wherein the core is completely covered with the sheath, the electric resistance of the surface of the fiber is lower than 10.sup.10 .OMEGA./cm, and the ratio of the electric resistance (.OMEGA./cm) of the surface to the internal electric resistance between the sections is lower than 10.sup.3.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: July 12, 1988
    Assignee: Teijin Limited
    Inventors: Setsuo Yamada, Fumiki Takabayashi, Yoshiyuki Sasaki, Katsuyuki Kasaoka
  • Electroconductive composite fiber and process for preparation thereof
    Patent number: 4743505
    Abstract: An electroconductive core-sheath composite fiber comprising a core containing an electroconductive substance and a sheath formed of a fiber-forming polymer, which surrounds the core, wherein the core is completely covered with the sheath, the electric resistance of the surface of the fiber is lower than 10.sup.10 .OMEGA./cm, and the ratio of the electric resistance (.OMEGA./cm) of the surface to the internal electric resistance between the sections is lower than 10.sup.3.
    Type: Grant
    Filed: August 12, 1986
    Date of Patent: May 10, 1988
    Assignee: Teijin Limited
    Inventors: Setsuo Yamada, Fumiki Takabayashi, Yoshiyuki Sasaki, Katsuyuki Kasaoka
  • Antistatic polyester fabric having water repellency
    Patent number: 4666764
    Abstract: An antistatic polyester fabric having a water repellency, which comprises a woven or knitted fabric comprising a fiber of a modified polyester composed mainly of a polyester and blended with an antistatic agent, at least the surface of which is covered with a fluorine type water and oil-repellency agent.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 19, 1987
    Assignee: Teijin Limited
    Inventors: Shigenobu Kobayashi, Fumiki Takabayashi, Setsuo Yamada
  • Method for improving light-resistance of aromatic polyamide fibers
    Patent number: 4631066
    Abstract: The light-resistance of aromatic polyamide fibers can be improved by heat-treating the aromatic polyamide fibers in the presence of urea and thiourea. The improvement in the light-resistance is enhanced by using aromatic polyamide fibers having an ultraviolet absorber incorporated therein.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: December 23, 1986
    Assignee: Teijin Limited
    Inventors: Norihiro Minemura, Fumiki Takabayashi, Setsuo Yamada
  • Halohydrocarbon treatment of a glycol and waste dye liquor followed by water extraction of the glycol
    Patent number: 4165217
    Abstract: A method for treating a wash waste liquor, which comprises treating fibers which have been dyed by applying a dye liquor containing a solution or dispersion of a non-ionic dye in a high boiling water-soluble organic medium or a mixture of it with a low boiling medium and then heating the fibers, with a low boiling organic solvent capable of dissolving the high boiling water-soluble organic medium, thereby to wash out the unfixed dye and the high boiling water-soluble organic medium remaining on the surface of the fibers; concentrating the wash waste liquor by evaporating at least a part of the low boiling organic solvent contained in the waste liquor; and extracting the high boiling organic medium from the concentrate using water.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: August 21, 1979
    Assignee: Teijin Limited
    Inventors: Kazuo Kitamura, Fumiki Takabayashi, Fumio Shibata, Kaname Watabe, Toshinori Azumi