Patents by Inventor Maiko Shibuya

Maiko Shibuya 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).

  • Polyoxymethylene compositions and articles made from these
    Patent number: 8138247
    Abstract: Polyoxymethylene compositions comprising (a) 20 to 80 weight percent polyacetal homopolymer, copolymer, or mixtures of these; (b) 5 to 40 weight percent glass fiber; (c) 0.1 to 2 weight percent polymeric thermal stabilizer selected from the group consisting of polyacrylamide, polymethacrylamide, and mixtures of these; (d) 0.02 to 2 weight percent allantoin; and 0.1 to 5 weight percent of an ethylene copolymer of the formula E/X/Y; wherein Y includes a glycidyl group. Articles made from these compositions.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: March 20, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kenichi Shinohara, Maiko Shibuya
  • POLYOXYMETHYLENE COMPOSITIONS AND ARTICLES MADE FROM THESE
    Publication number: 20100056698
    Abstract: Polyoxymethylene compositions comprising (a) 20 to 80 weight percent polyacetal homopolymer, copolymer, or mixtures of these; (b) 5 to 40 weight percent glass fiber; (c) 0.1 to 2 weight percent polymeric thermal stabilizer selected from the group consisting of polyacrylamide, polymethacrylamide, and mixtures of these; (d) 0.02 to 2 weight percent allantoin; and 0.1 to 5 weight percent of an ethylene copolymer of the formula E/X/Y; wherein Y includes a glycidyl group. Articles made from these compositions.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kenichi Shinohara, Maiko Shibuya
  • Polyacetal resin composition
    Publication number: 20080234413
    Abstract: A polyacetal resin composition of the present invention includes: a) a polyacetal resin, b) a high molecular weight silicone blended with a polyacetal resin, a high molecular weight silicone blended with an olefin resin, a polyolefin resin grafted to a silicone compound or a combination thereof, and c) an organic cyclic compound having an active imino group.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 25, 2008
    Inventors: Kenichi Shinohara, Maiko Shibuya