Patents by Inventor Hideaki Tamakoshi

Hideaki Tamakoshi 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 an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion
    Patent number: 7750099
    Abstract: The method for producing an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion comprises: a process of polymerizing 3,4-dialkoxythiophene in the presence of a polyanion by using an oxidizing agent in an aqueous solvent, in which polystyrene-sulfonic acid having a specific molecular weight and a sulfonation degree or polystyrenesulfonic acid having another specific sulfonation degree is used as the polyanion, or in which pH of the reaction mixture during the reaction is set to a specific value.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: July 6, 2010
    Assignee: H. C. Starck GmbH
    Inventors: Yasuo Chikusa, Hideaki Tamakoshi
  • Method for producing an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion
    Publication number: 20060020092
    Abstract: The method for producing an aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion comprises: a process of polymerizing 3,4-dialkoxythiophene in the presence of a polyanion by using an oxidizing agent in an aqueous solvent, in which polystyrene-sulfonic acid having a specific molecular weight and a sulfonation degree or polystyrenesulfonic acid having another specific sulfonation degree is used as the polyanion, or in which pH of the reaction mixture during the reaction is set to a specific value.
    Type: Application
    Filed: July 11, 2005
    Publication date: January 26, 2006
    Applicant: H. C. STARCK GMBH
    Inventors: Yasuo Chikusa, Hideaki Tamakoshi