Patents by Inventor Yuko Akutsu

Yuko Akutsu 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).

  • Ethylene-vinyl alcohol copolymer and process for producing the same
    Patent number: 7019095
    Abstract: An ethylene-vinyl alcohol copolymer, represented by the formula (1): wherein n represents a number in the range of 15 to 15,000, and a method of producing an ethylene-vinyl alcohol copolymer wherein an 1,4 -polybutadiene is hydroborated in non-gel state in a solvent, followed by oxidation to be hydroxylated so as to derive an ethylene-vinyl alcohol copolymer represented by the formula (1): wherein n represents a number in the range of 15 to 15,000.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: March 28, 2006
    Assignee: Nihon University, School Juridical Person
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu
  • Ethylene/vinyl alcohol copolymer and process for producing the same
    Publication number: 20040204550
    Abstract: According to the present invention, an ethylene-vinyl alcohol copolymer having a novel structure, and a method of producing the same are provided.
    Type: Application
    Filed: May 19, 2004
    Publication date: October 14, 2004
    Inventors: Takashi Sawaguchi, Shoichiro Yano, Toshiki Hagiwara, Yoshihiro Chishima, Yuko Akutsu