Patents by Inventor Kyoko Yokoi

Kyoko Yokoi 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).

  • Nonwoven fabric containing ultra-fine fibers, leather-like sheet, and production methods thereof
    Patent number: 7998887
    Abstract: To provide a nonwoven fabric containing ultra-fine fibers suitable as a leather-like sheet, and also a leather-like sheet with an excellent compactness. A nonwoven fabric containing ultra-fine fibers, characterized in that it contains staple fibers with a fiber fineness of 0.0001 to 0.5 decitex and a fiber length of 10 cm or less, and has a weight per unit area of 100 to 550 g/m2, an apparent density of 0.280 to 0.700 g/cm3, a tensile strength of 70 N/cm or more, and a tear strength of 3 to 50 N.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: August 16, 2011
    Assignee: Toray Industries, Inc.
    Inventors: Tomoyuki Horiguchi, Kyoko Yokoi, Kentaro Kajiwara
  • Micro staple fiber nonwoven fabric and leather-like article in sheet form, and method for their production
    Publication number: 20060234587
    Abstract: To provide a nonwoven fabric containing ultra-fine fibers suitable as a leather-like sheet, and also a leather-like sheet with an excellent compactness. A nonwoven fabric containing ultra-fine fibers, characterized in that it contains staple fibers with a fiber fineness of 0.0001 to 0.5 decitex and a fiber length of 10 cm or less, and has a weight per unit area of 100 to 550 g/m2, an apparent density of 0.280 to 0.700 g/cm3, a tensile strength of 70 N/cm or more, and a tear strength of 3 to 50 N.
    Type: Application
    Filed: July 7, 2004
    Publication date: October 19, 2006
    Inventors: Tomoyuki Horiguchi, Kyoko Yokoi, Kentaro Kajiwara
  • Artificial suede-type leather and process for producing the same
    Publication number: 20060035556
    Abstract: This invention relates to a suede-like artificial leather using ultra-fine polyester fibers and a polyurethane, and provides a suede-like artificial leather free from the occurrence of specking and having graceful surface appearance and high light fastness. The suede-like artificial leather comprising a fiber-entangled substrate mainly containing ultra-fine polyester fibers with a fiber fineness of 0.7 dtex or less and a polyurethane, and is dyed, and is wherein said polyurethane contains at least one each of yellow pigments, red pigments and blue pigments, and that said artificial leather satisfies all of the following properties (1) through (3) as measured by the methods described in the specification; (1) The infrared reflectance at 850 nm is 60% or more; (2) The surface temperature during light irradiation is 105° C or lower; (3) The light fastness is class 3 or better. Especially since the suede-like artificial leather of this invention has high light fastness, it can be most suitably used for car seats.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 16, 2006
    Inventors: Kyoko Yokoi, Koji Watanabe, Takafumi Hashimoto