Patents by Inventor Atsushi Abiko

Atsushi Abiko 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).

  • Method for producing lactide-lactone copolymer
    Patent number: 9527955
    Abstract: This invention provides a novel method for producing a lactide-lactone copolymer. The method is characterized by copolymerizing a lactide and a lactone using a molybdenum compound as a catalyst.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: December 27, 2016
    Assignee: NATIONAL UNIVERSITY CORPORATION KYOTO INSTITUTE OF TECHNOLOGY
    Inventors: Atsushi Abiko, Yasumi Maruta
  • METHOD FOR PRODUCING LACTIDE-LACTONE COPOLYMER
    Publication number: 20160053049
    Abstract: This invention provides a novel method for producing a lactide-lactone copolymer. The method is characterized by copolymerizing a lactide and a lactone using a molybdenum compound as a catalyst.
    Type: Application
    Filed: March 19, 2014
    Publication date: February 25, 2016
    Inventors: Atsushi ABIKO, Yasumi MARUTA
  • Organic-acid-based catalyst for production of polylactic acid
    Publication number: 20090176963
    Abstract: Provided is a new organic-acid-based catalyst enabling production of a polyhydroxycarboxylic acid by direct dehydration polycondensation of a hydroxycarboxylic acid such as L-lactic acid, specifically, an organic-acid-based catalyst comprising an amine salt of a sulfonic acid or a phosphine salt of a sulfonic acid for production of polyhydroxycarboxylic acids such as poly-L-lactic acid.
    Type: Application
    Filed: June 12, 2007
    Publication date: July 9, 2009
    Inventors: Atsushi Abiko, Hisako Iwahashi
  • Carbostyril derivatives and salts thereof, processes for preparing the same and cardiotonic composition containing the same
    Patent number: 4845100
    Abstract: Carbostyril derivatives and salts thereof having excellent positive inotropic activity, increasing activity of coronary blood flow, as well as hypotensive activity in one hand, and also they do not have substantially increasing activity of heart beat as their characteristic property, as well as they have less side-effects in the central nervous system, such as they have less vomiting effect, decreasing effect in motor function and tremor effect.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: July 4, 1989
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Atsushi Abiko, Takafumi Fujioka, Kazuyuki Nakagawa, Kazumi Kondo