Patents by Inventor Junich Tamura

Junich Tamura 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).

  • TONER AND METHOD FOR PRODUCING TONER
    Publication number: 20180107128
    Abstract: A toner comprising a toner particle including a resin component, wherein the resin component includes an olefin resin and an olefin copolymer including a hydroxyl group, the olefin resin has a specific monomer unit Y1, the olefin copolymer including a hydroxyl group has a specific monomer unit Z1 and Z2, a hydroxyl value of the olefin resin is not more than 10 mg KOH/g, a hydroxyl value of the olefin copolymer including a hydroxyl group is at least 20 mg KOH/g and not more than 250 mg KOH/g, and a content of the olefin resin in the resin component is more than 50 mass % with respect to a total mass of the resin component.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 19, 2018
    Inventors: Tomoyo Miyakai, Hayato Ida, Takaho Shibata, Junich Tamura, Ryuji Murayama, Daisuke Yamashita, Takashi Hirasa
  • Bleaching detergent composition comprises coated sodium percarbonate particles
    Patent number: 4526698
    Abstract: A bleaching detergent composition contains as effective component sodium percarbonate which has been coated with a coating agent containing a borate.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: July 2, 1985
    Assignee: Kao Corporation
    Inventors: Muthmi Kuroda, Moriyasu Murata, Tsunesi Takeda, Junich Tamura