Patents by Inventor Runa Unagami

Runa Unagami 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).

  • Polar dispersion composition of carbon black
    Patent number: 8435425
    Abstract: The invention provides a polar dispersion composition containing 0.5 to 30 parts by mass of an electroconductive carbon black and 0.1 to 30 parts by mass of a styrene-methoxy polyethylene glycol methacrylate copolymer, with respect to 100 parts by mass of the polar dispersion composition. The composition of the invention is easy to handle as a liquid preparation, and develops sufficient electroconductivity when processed into a conductive material.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: May 7, 2013
    Assignee: Lion Corporation
    Inventors: Runa Unagami, Atsushi Ito, Yoshiyasu Kubo, Norio Tobori
  • POLAR DISPERSION COMPOSITION OF CARBON BLACK
    Publication number: 20120037853
    Abstract: The invention provides a polar dispersion composition containing 0.5 to 30 parts by mass of an electroconductive carbon black and 0.1 to 30 parts by mass of a styrene-methoxy polyethylene glycol methacrylate copolymer, with respect to 100 parts by mass of the polar dispersion composition. The composition of the invention is easy to handle as a liquid preparation, and develops sufficient electroconductivity when processed into a conductive material.
    Type: Application
    Filed: April 26, 2010
    Publication date: February 16, 2012
    Applicant: LION CORPORATION
    Inventors: Runa Unagami, Atsushi Ito, Yoshiyasu Kubo, Norio Tobori
  • METHOD FOR PRODUCING HIGH-PURITY CARBON BLACK
    Publication number: 20110217229
    Abstract: The invention provides a method for producing a purified carbon black by removing metal from the aqueous dispersion of carbon black, wherein the metal is removed by bringing the aqueous dispersion of carbon black into contact with at least one organic acid selected from the group consisting of glycolic acid, ascorbic acid and malonic acid. The invention can provide a method for producing the purified carbon black where the metal components such as iron and the other metals contained as the impurities in carbon black can be reduced.
    Type: Application
    Filed: September 29, 2009
    Publication date: September 8, 2011
    Applicant: LION CORPORATION
    Inventors: Kazuya Inomata, Runa Unagami, Toko Adachi, Atsushi Ito