Patents by Inventor Yoshimi TAKEDA

Yoshimi TAKEDA 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).

  • Photopolymerization initiator
    Patent number: 11787884
    Abstract: The present application provides a photopolymerization initiator having one or more ethylenic unsaturated bonds and one or more photopolymerization initiating functional groups in the molecule has been found. One or more kinds selected from an acrylamide group, an acrylate group, a vinyl group, an allyl group, a maleimide group, and the like can be suitably used as the ethylenic unsaturated bond, and a benzophenone compound having a specific structure can be suitably used as the photopolymerization initiating functional group.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: October 17, 2023
    Assignee: KJ CHEMICALS CORPORATION
    Inventors: Meiri Hirata, Daisuke Kobayashi, Yoshimi Takeda
  • PHOTOPOLYMERIZATION INITIATOR
    Publication number: 20230037488
    Abstract: The present application provides a photopolymerization initiator having one or more ethylenic unsaturated bonds and one or more photopolymerization initiating functional groups in the molecule has been found. One or more kinds selected from an acrylamide group, an acrylate group, a vinyl group, an allyl group, a maleimide group, and the like can be suitably used as the ethylenic unsaturated bond, and a benzophenone compound having a specific structure can be suitably used as the photopolymerization initiating functional group.
    Type: Application
    Filed: December 11, 2020
    Publication date: February 9, 2023
    Applicant: KJ CHEMICALS CORPORATION
    Inventors: Meiri HIRATA, Daisuke KOBAYASHI, Yoshimi TAKEDA