Patents by Inventor Hironobu Imakita

Hironobu Imakita 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).

  • Diffusion sheet, backlight unit, and liquid crystal display device
    Patent number: 10539721
    Abstract: A diffusion sheet includes a resin base layer that is light transmissive and a light diffusion layer provided on one surface of the resin base layer, and including titanium oxide particles, resin beads and a binder resin. The percentage by mass of the titanium oxide particle in the binder resin is 190 to 250% by mass, and the light diffusion layer has a mass per unit area of 6.0 to 7.0 g/m2.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: January 21, 2020
    Assignee: Keiwa Inc.
    Inventors: Tadayuki Nonaka, Hironobu Imakita, Kenichi Harada
  • DIFFUSION SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20190219744
    Abstract: A diffusion sheet includes a resin base layer that is light transmissive and a light diffusion layer provided on one surface of the resin base layer, and including titanium oxide particles, resin beads and a binder resin. The percentage by mass of the titanium oxide particle in the binder resin is 190 to 250% by mass, and the light diffusion layer has a mass per unit area of 6.0 to 7.0 g/m2.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventors: Tadayuki Nonaka, Hironobu Imakita, Kenichi Harada