Patents by Inventor Akinori Ejima

Akinori Ejima 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).

  • Patent number: 12066864
    Abstract: Provided is a foldable display that is excellent in mass production applicability, and that is resistant to image distortion that can appear in the folding portion after the display is repeatedly folded, and also a mobile device equipped with such a foldable display. The foldable display includes a hard coating film on at least part of the front surface thereof, the hard coating film including a polyester film having an intrinsic viscosity of 0.65 to 1.0 dl/g as a substrate film; a hardened layer formed from a polyimide-based resin, the hardened layer having a thickness of 0.5 to 3.0 ?m; and a hard coating layer, wherein the hardened layer and the hard coating layer are present in this order at least on the front surface side of the substrate film.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 20, 2024
    Assignee: TOYOBO CO., LTD.
    Inventors: Yuki Hongo, Mayu Ogawa, Akinori Ejima
  • Publication number: 20210132663
    Abstract: Provided is a foldable display that is excellent in mass production applicability, and that is resistant to image distortion that can appear in the folding portion after the display is repeatedly folded, and also a mobile device equipped with such a foldable display. The foldable display includes a hard coating film on at least part of the front surface thereof, the hard coating film including a polyester film having an intrinsic viscosity of 0.65 to 1.0 dl/g as a substrate film; a hardened layer formed from a polyimide-based resin, the hardened layer having a thickness of 0.5 to 3.0 ?m; and a hard coating layer, wherein the hardened layer and the hard coating layer are present in this order at least on the front surface side of the substrate film.
    Type: Application
    Filed: April 22, 2019
    Publication date: May 6, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Yuki HONGO, Mayu OGAWA, Akinori EJIMA
  • Publication number: 20160133352
    Abstract: An object is to provide a heat-conductive sheet being excellent in insulation properties and thermal anisotropy and having high heat-dissipating properties. An insulating heat-conductive sheet including insulating highly heat-conductive fibers penetrating in a thickness direction of the sheet and a binder resin, wherein the insulating highly heat-conductive fibers penetrating in the thickness direction have a penetration density greater than or equal to 6%, and the insulating heat-conductive sheet has a ratio of thermal conductivity in the thickness direction to thermal conductivity in a planar direction greater than or equal to 2, and an initial dielectric breakdown strength greater than or equal to 20 kV/mm.
    Type: Application
    Filed: June 19, 2014
    Publication date: May 12, 2016
    Applicant: TOYOBO CO., LTD.
    Inventors: Kana HASHIMOTO, Etsuko KOUMON, Akinori Ejima