Patents by Inventor Hisaki Asakawa

Hisaki Asakawa 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).

  • Production method for conductive resin composition, and conductive resin composition
    Patent number: 9978475
    Abstract: Provided by the present invention is a conductive resin composition which has, by adding small amount of a carbon nanotube thereto, high conductivity and superior processability including moldability while keeping original physical properties owned by the thermoplastic resin itself. Provided is a method for producing a conductive resin composition, that is, a method for producing a conductive resin composition which contains a carbon nanotube and a thermoplastic resin, wherein the method contains following steps of (A) and (B); namely, (A) a step of mixing and dispersing the carbon nanotube, a solvent, and the thermoplastic resin, thereby obtaining a carbon nanotube resin mixture, and (B) a step of removing the solvent while kneading the carbon nanotube resin mixture. Provided further is a conductive resin composition obtained by the said production method.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: May 22, 2018
    Assignee: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Hisaki Asakawa, Masayuki Shibata, Noritaka Sakuta, Takuma Itoh
  • PRODUCTION METHOD FOR CONDUCTIVE RESIN COMPOSITION, AND CONDUCTIVE RESIN COMPOSITION
    Publication number: 20140361227
    Abstract: Provided by the present invention is a conductive resin composition which has, by adding small amount of a carbon nanotube thereto, high conductivity and superior processability including moldability while keeping original physical properties owned by the thermoplastic resin itself. Provided is a method for producing a conductive resin composition, that is, a method for producing a conductive resin composition which contains a carbon nanotube and a thermoplastic resin, wherein the method contains following steps of (A) and (B); namely, (A) a step of mixing and dispersing the carbon nanotube, a solvent, and the thermoplastic resin, thereby obtaining a carbon nanotube resin mixture, and (B) a step of removing the solvent while kneading the carbon nanotube resin mixture. Provided further is a conductive resin composition obtained by the said production method.
    Type: Application
    Filed: January 22, 2013
    Publication date: December 11, 2014
    Applicant: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Hisaki Asakawa, Masayuki Shibata, Noritaka Sakuta, Takuma Itoh