Patents by Inventor Futoshi Ishimaru

Futoshi Ishimaru 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).

  • Hindered amine compound, resin composition, polyurethane fiber and production method and use thereof
    Patent number: 6486238
    Abstract: A hindered amine compound having thesolubility in an acidic solution of 5.0×10−3 eq./liter or less comprising at least two specific organic groups in a specific weight ratio in a molecule, or at least two specific monomeric units, which can be used as a stabilizer of a resin.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: November 26, 2002
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kota Kitamura, Chihiro Oshimo, Genei Matsukawa, Futoshi Ishimaru
  • Thermoplastic polyurethane
    Patent number: 5695884
    Abstract: A thermoplastic polyurethane composition of the present invention includes a thermoplastic polyurethane obtained by reacting at least the following components A, B, and C: (A) a polyester polyol having a number average age molecular weight of 500 to 5000, containing an acid component including aromatic dicarboxylic acid and aliphatic dicarboxylic acid, the molar ratio of the aromatic dicarboxylic acid to the aliphatic dicarboxylic acid being 5:95 to 90:10; (B) a low molecular weight diol having a molecular weight of less than 500; and (C) an organic diisocyanate, wherein the thermoplastic polyurethane has a metal sulfonate group of 10 to 1000 equivalents/10.sup.6 g of the polyurethane and a urethane group of 1200 to 3000 equivalents/10.sup.6 g of the polyurethane.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: December 9, 1997
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Futoshi Ishimaru, Satoshi Nakamura, Chikara Sugitawa, Osamu Imagawa