Patents by Inventor Keizo Udagawa

Keizo Udagawa 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: 11957020
    Abstract: A light-emitting device is described that includes a plurality of partially drivable light sources, and a color conversion component configured to convert at least part of incident light from at least part of the light sources and emit outgoing light falling in a different wavelength region from the incident light, where the color conversion component includes a pyrromethene derivative.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 9, 2024
    Assignee: Toray Industries, Inc.
    Inventors: Yasunori Ichihashi, Daisaku Tanaka, Masahito Nishiyama, Keizo Udagawa, Yuka Tatematsu
  • Publication number: 20230365458
    Abstract: The purpose of the present invention is to provide a resin-coated ultra-thin glass having high impact resistance, satisfactory bending resistance and high transparency. Provided is a resin-coated ultra-thin glass composed of three layers, i.e., an ultra-thin glass (A) having a thickness of 10 to 100 µm inclusive, an organic film (B) formed on one surface of the ultra-thin glass (A), and an organic film (C) formed on the other surface of the ultra-thin glass (A), in which the organic film (B) is formed from a composition containing a thermoplastic resin (D) having a weight-average molecular weight of 1000 to 70000 and the organic film (C) is formed from a composition containing a siloxane resin (E).
    Type: Application
    Filed: December 16, 2021
    Publication date: November 16, 2023
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Keizo UDAGAWA, Tatsuya OHASHI, Yoshihiko INOUE
  • Publication number: 20210134890
    Abstract: A light-emitting device is described that includes a plurality of partially drivable light sources, and a color conversion component configured to convert at least part of incident light from at least part of the light sources and emit outgoing light falling in a different wavelength region from the incident light, where the color conversion component includes a pyrromethene derivative.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 6, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Yasunori Ichihashi, Daisaku Tanaka, Masahito Nishiyama, Keizo Udagawa, Yuka Tatematsu
  • Publication number: 20190056662
    Abstract: Provided is a colored resin composition including a polyhalogenated zinc phthalocyanine, a yellow pigment, a binder resin, and a compound of the following general formula (1). The yellow pigment is a pigment selected from C.I. Pigment Yellow 138 and C.I. Pigment Yellow 185.
    Type: Application
    Filed: March 17, 2017
    Publication date: February 21, 2019
    Applicant: Toray Industries, Inc.
    Inventors: Shota Hashimoto, Tetsuo Yamashita, Yasuhiro Kamii, Kenichi Kawabe, Keizo Udagawa