Patents by Inventor Hidetoshi Takanaga

Hidetoshi Takanaga 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).

  • Core-sheath composite fiber and method for producing same
    Patent number: 9394631
    Abstract: A core-sheath composite fiber includes a core component including an easily alkaline elutable polyester with a main repeating unit constructed of ethylene terephthalate containing 2.0 to 5.5 mol % of an isophthalic acid component containing a metal sulfonate group relative to a total acid component and 3.0 to 6.0 mol % of an adipic acid component relative to the total acid component, and a sheath component including a polyamide.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: July 19, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Junichi Mizota, Takashi Ida, Hidetoshi Takanaga
  • TEXTILE USING A FLAT MULTILOBAR CROSS-SECTION FIBER
    Publication number: 20150203997
    Abstract: A fabric is subjected to calender processing on one or both surfaces and includes a polyamide fiber as warp or/and woof having, after calender processing, a single filament fineness of 0.5 to 2.5 dtex and a total fiber fineness of 5 to 50 dtex, the single filament having a cross-sectional shape that is flat multifoliar with 6 to 10 lobe parts and has a flat ratio (W) (?/?) of 1.5 to 3.0, the fabric having a cover factor of 1200 to 2500.
    Type: Application
    Filed: June 19, 2013
    Publication date: July 23, 2015
    Inventors: Kenji Yamanaka, Hidetoshi Takanaga, Takashi Ida
  • CORE-SHEATH COMPOSITE FIBER AND METHOD FOR PRODUCING SAME
    Publication number: 20140256203
    Abstract: A core-sheath composite fiber includes a core component including an easily alkaline elutable polyester with a main repeating unit constructed of ethylene terephthalate containing 2.0 to 5.5 mol % of an isophthalic acid component containing a metal sulfonate group relative to a total acid component and 3.0 to 6.0 mol % of an adipic acid component relative to the total acid component, and a sheath component including a polyamide.
    Type: Application
    Filed: August 27, 2012
    Publication date: September 11, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Junichi Mizota, Takashi Ida, Hidetoshi Takanaga
  • ELECTRICALLY CONDUCTIVE FLOC AND ELECTRICALLY CONDUCTIVE BRUSH
    Publication number: 20110240340
    Abstract: An electrically conductive floc is provided that does not need shearing in producing brushes with a smooth surface. The electrically conductive floc includes electrically conductive chemical fibers wherein said fibers have a diameter of 10 to 100 ?m, a fiber length of 0.1 to 5 mm, and a fiber length variation of 5% or less.
    Type: Application
    Filed: December 1, 2009
    Publication date: October 6, 2011
    Applicant: Toray Industries ,Inc.
    Inventors: Hidetoshi Takanaga, Yoshitaka Matsumura, Hanji Ishikawa