Patents by Inventor Futoshi Oikawa

Futoshi Oikawa 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).

  • WAVELENGTH CONVERSION MEMBER, BACKLIGHT UNIT, AND IMAGE DISPLAY DEVICE
    Publication number: 20220187518
    Abstract: A wavelength conversion member, comprising a wavelength conversion layer that comprises a phosphor and a light scattering material, and satisfying at least one of the following (1) or (2): (1) the wavelength conversion member has a diffusion transmittance of 50% or less and the wavelength conversion layer having a thickness of 100 ?m or less; or (2) a content of the light scattering material in a total wavelength conversion layer is 2.0% by mass or more.
    Type: Application
    Filed: April 10, 2019
    Publication date: June 16, 2022
    Inventors: Yoshitaka KATSUTA, Tomoyuki NAKAMURA, Futoshi OIKAWA, Mayumi SATO, Katsuyoshi SAKAMOTO, Yuma YOSHIDA, Daisuke OTSUKI, Kunihiro KIRIGAYA
  • WAVELENGTH CONVERSION MEMBER AND UTILIZATION THEREOF, BACKLIGHT UNIT AND IMAGE DISPLAY DEVICE
    Publication number: 20220179138
    Abstract: A wavelength conversion member includes a wavelength conversion layer that contains a phosphor, the wavelength conversion member having a face that has an arithmetic average roughness Ra of 5 ?m or more and a maximum height Rz of from 30 to 250 ?m.
    Type: Application
    Filed: June 14, 2019
    Publication date: June 9, 2022
    Inventors: Mayumi SATOH, Tomoyuki NAKAMURA, Futoshi OIKAWA, Katsuyoshi SAKAMOTO, Yuma YOSHIDA, Yoshitaka KATSUTA
  • Laminate, wavelength conversion member, backlight unit, and image display device
    Patent number: 10960651
    Abstract: A laminate, comprising an intermediate layer and a covering material A and a covering material B that are disposed on respective sides of the intermediate layer, the covering material A being disposed with an orientation direction at an angle of 20° or less with respect to an orientation direction of the covering material B.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 30, 2021
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Futoshi Oikawa, Masashi Takahashi, Tomomi Kawamura
  • LAMINATE, WAVELENGTH CONVERSION MEMBER, BACKLIGHT UNIT, AND IMAGE DISPLAY DEVICE
    Publication number: 20200331244
    Abstract: A laminate, comprising an intermediate layer and a covering material A and a covering material B that are disposed on respective sides of the intermediate layer, the covering material A being disposed with an orientation direction at an angle of 20° or less with respect to an orientation direction of the covering material B.
    Type: Application
    Filed: December 28, 2017
    Publication date: October 22, 2020
    Inventors: Futoshi OIKAWA, Masashi TAKAHASHI, Tomomi KAWAMURA
  • Photocurable resin composition and cured product of same, resin sheet and production method for same, and display device
    Patent number: 8697240
    Abstract: A photocurable resin composition including: (A) a urethane (meth)acrylate oligomer having a polyoxyalkylene structure, (B) a (meth)acrylic polymer, (C) a (meth)acrylic monomer, and (D) a photopolymerization initiator, wherein the component (A) is produced using monomer components including (a1) a polyoxyalkylene polyol, (a2) a polyisocyanate, and (a3) a hydroxyl group-containing mono(meth)acrylate compound, a relationship N (=n1/n2) between the total mass n1 of the monomer components and the total equivalent weight n2 of acryloyl groups within the all monomer components is 4,000 or greater, and the component (A) is substantially free of unreacted isocyanate groups.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: April 15, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Yoshinobu Ogawa, Futoshi Oikawa, Hiromasa Kawai
  • PHOTOCURABLE RESIN COMPOSITION AND CURED PRODUCT OF SAME, RESIN SHEET AND PRODUCTION METHOD FOR SAME, AND DISPLAY DEVICE
    Publication number: 20120114953
    Abstract: A photocurable resin composition including: (A) a urethane (meth)acrylate oligomer having a polyoxyalkylene structure, (B) a (meth)acrylic polymer, (C) a (meth)acrylic monomer, and (D) a photopolymerization initiator, wherein the component (A) is produced using monomer components including (a1) a polyoxyalkylene polyol, (a2) a polyisocyanate, and (a3) a hydroxyl group-containing mono(meth)acrylate compound, a relationship N (=n1/n2) between the total mass n1 of the monomer components and the total equivalent weight n2 of acryloyl groups within the all monomer components is 4,000 or greater, and the component (A) is substantially free of unreacted isocyanate groups.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 10, 2012
    Inventors: Yoshinobu Ogawa, Futoshi Oikawa, Hiromasa Kawai