Patents by Inventor Shinpei FUNAOKA

Shinpei FUNAOKA 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).

  • Polyurethane resin, polyurethane resin composition, and method for manufacturing polyurethane resin
    Patent number: 9890479
    Abstract: The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: February 13, 2018
    Assignees: SANYO CHEMICAL INDUSTRIES, LTD., TORAY OPELONTEX CO., LTD.
    Inventors: Yusuke Koike, Shinpei Funaoka, Kenzo Hori, Toshihiro Tanaka, Shingo Ito, Hiroshi Takayama
  • POLYURETHANE ELASTIC FIBER AND METHOD FOR PRODUCING SAME
    Publication number: 20160265142
    Abstract: The present invention relates to polyurethane elastic fibers obtained by spinning a polyurethane resin. The polyurethane resin includes, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 15, 2016
    Applicant: TORAY OPELONTEX CO., LTD.
    Inventors: Toshihiro TANAKA, Shingo ITO, Hiroshi TAKAYAMA, Yusuke KOIKE, Shinpei FUNAOKA, Kenzo HORI
  • POLYURETHANE RESIN, POLYURETHANE RESIN COMPOSITION, AND METHOD FOR MANUFACTURING POLYURETHANE RESIN
    Publication number: 20160257775
    Abstract: The present invention relates to a polyurethane resin including, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 8, 2016
    Applicants: SANYO CHEMICAL INDUSTRIES, LTD., TORAY OPELONTEX CO., LTD.
    Inventors: Yusuke KOIKE, Shinpei FUNAOKA, Kenzo HORI, Toshihiro TANAKA, Shingo ITO, Hiroshi TAKAYAMA