Patents by Inventor Shigetoki Nishino

Shigetoki Nishino 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 and method for producing the same, resin composition and sheet-form article
    Patent number: 6593419
    Abstract: A method for producing a polyurethane resin which comprises reacting: (A) a compound having an active hydrogen-containing group, containing: (A1) a compound having one spiro ring and active hydrogen-containing groups at both ends; and (A2) an aliphatic polycarbonate polyol; (B) a polyisocyanate; and (C) a chain-extending agent. Also disclosed are a resin composition comprising the polyurethane resin and a sheet-form article comprising the poylurethane resin or the resin composition.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: July 15, 2003
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hiroki Tanaka, Shigetoki Nishino, Hideyuki Takeuchi
  • Polyurethane resin and method for producing the same, resin composition and sheet-form article
    Publication number: 20030092832
    Abstract: A method for producing a polyurethane resin which comprises reacting: (A) a compound having an active hydrogen-containing group, containing: (A1) a compound having one spiro ring and active hydrogen-containing groups at both ends; and (A2) an aliphatic polycarbonate polyol; (B) a polyisocyanate; and (C) a chain-extending agent. Also disclosed are a resin composition comprising the polyurethane resin and a sheet-form article comprising the polyurethane resin or the resin composition.
    Type: Application
    Filed: October 11, 2001
    Publication date: May 15, 2003
    Applicant: DAINIPPON INK AND CHEMICALS, INC.
    Inventors: Hiroki Tanaka, Shigetoki Nishino, Hideyuki Takeuchi