Patents by Inventor Kosuke Fujiyama

Kosuke Fujiyama 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).

  • Phosphorus-containing polycarbonate polyol, method for production thereof, and phosphorus-containing polycarbonate polyurethane
    Patent number: 8344096
    Abstract: The phosphorus-containing polycarbonate polyol disclosed herein has a structural unit (I) represented by a formula: —OCOO— and a structural unit (II) represented by a residue A, wherein A denotes a n-valent residue in which n of alcoholic hydroxyl groups are removed from a phosphorus compound having at least n of alcoholic hydroxyl groups, in which n is an integer of 2 or larger, and wherein a terminal group of the polyol is a alcoholic hydroxyl group. The novel phosphorus-containing polycarbonate polyol, as a reactive flame-retardant agent, can provide flame-retardant properties easily to polyurethane or the like.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: January 1, 2013
    Assignee: Ube Industries, Ltd.
    Inventors: Ryoichi Takasawa, Kosuke Fujiyama, Masahiro Naiki, Masahiko Watanabe, Yasuhiro Kawachi
  • PHOSPHORUS-CONTAINING POLYCARBONATE POLYOL, METHOD FOR PRODUCTION THEREOF, AND PHOSPHORUS-CONTAINING POLYCARBONATE POLYURETHANE
    Publication number: 20100197887
    Abstract: The phosphorus-containing polycarbonate polyol disclosed herein has a structural unit (I) represented by a formula: —OCOO— and a structural unit (II) represented by a residue A, wherein A denotes a n-valent residue in which n of alcoholic hydroxyl groups are removed from a phosphorus compound having at least n of alcoholic hydroxyl groups, in which n is an integer of 2 or larger, and wherein a terminal group of the polyol is a alcoholic hydroxyl group. The novel phosphorus-containing polycarbonate polyol, as a reactive flame-retardant agent, can provide flame-retardant properties easily to polyurethane or the like.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ryoichi Takasawa, Kosuke Fujiyama, Masahiro Naiki, Masahiko Watanabe, Yasuhiro Kawachi