Patents by Inventor Katsuya Motojima

Katsuya Motojima 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 foam for cushioning materials
    Patent number: 5128381
    Abstract: Disclosed herein is a polyurethane foam for cushioning materials. The polyurethane foam is formed by reacting a mixture of a polyol component, a polyisocyanate component and other optional components. The polyol component contains a mixed polyol which is composed of a low-hydroxyl-number polyol having a hydroxyl number of 30-80 and a high-hydroxyl-number polyol having a hydroxyl number of 350-600 and has an average hydroxyl number of 120-170. The mixture may additionally contain a plasticizer component containing at least one kind of plasticizer having one active hydrogen atom per molecule.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: July 7, 1992
    Assignees: Achilles Corporation, Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kouichi Tane, Katsuya Motojima, Yasumasa Sawachika, Tetsuya Oda, Yoshio Sakaguchi