Patents by Inventor Kumiko Nakamura

Kumiko Nakamura 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).

  • AGENT FOR PROMOTING ODONTOBLAST PROPAGATION AND DIFFERENTIATION
    Publication number: 20220362201
    Abstract: An odontoblast proliferation/differentiation promoting agent contains a calcium salt of 4-(meth)acryloyloxyethyltrimellitic acid.
    Type: Application
    Filed: October 23, 2020
    Publication date: November 17, 2022
    Inventors: Takashi SAITO, Youjing QIU, Tamaki OTSUKI, Akiyo TADA, Takashi YAMAMOTO, Tatsuya ORI, Kumiko NAKAMURA, Tadashi ISHIDA
  • Set of electrophotographic toners
    Patent number: 5082761
    Abstract: A set of electrophotographic toners used for electrophotographic machines are disclosed which comprise an initial supply toner and a supplementary toner, both of which are composed of toner powder and additives adhering to the surface of the toner powder, wherein the weight ratio x of additives to toner powder in the initial supply toner is set to be greater than the weight ratio y of additives to toner powder in the supplementary toner.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: January 21, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigeaki Tasaka, Nobuhiko Nakano, Kazuya Maeda, Toshihisa Ishida, Yoshiaki Takahashi, Tadashi Nakamura, Satoshi Yamaue, Kumiko Nakamura