Patents by Inventor Kei TSURUZOE

Kei TSURUZOE 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).

  • Phosphor protection film, wavelength conversion sheet, and light-emitting unit
    Patent number: 11561328
    Abstract: A phosphor protection film for protecting phosphors contained in a phosphor layer. The phosphor protection film includes a functional layer, a bulking layer that has a single-layer structure or a laminated structure, and a first vapor deposited layer (gas barrier layer) that has gas barrier properties in this order from outside to inside. The clearance between the functional layer and the first vapor deposited layer in the thickness direction of the phosphor protection film is 45 to 280 ?m.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 24, 2023
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroki Ichiba, Kei Tsuruzoe
  • Transparent conductive gas barrier laminate and device including the laminate
    Patent number: 11364704
    Abstract: A transparent conductive gas barrier laminate according to the present disclosure includes a transparent gas barrier film and a transparent conductive layer in this order from outside toward inside. In the laminate, the transparent gas barrier film has a b* value of more than 0 in a L*a*b* color system, and the transparent conductive layer contains a conductive polymer and has a b* value of less than 0 in the L*a*b* color system.
    Type: Grant
    Filed: September 7, 2019
    Date of Patent: June 21, 2022
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Ryo Shoda, Tomohiko Yamazaki, Kei Tsuruzoe, Kenji Matsumasa, Miki Fukugami, Kengo Okamura
  • TRANSPARENT CONDUCTIVE GAS BARRIER LAMINATE AND DEVICE INCLUDING THE LAMINATE
    Publication number: 20200009829
    Abstract: A transparent conductive gas barrier laminate according to the present disclosure includes a transparent gas barrier film and a transparent conductive layer in this order from outside toward inside. In the laminate, the transparent gas barrier film has a b* value of more than 0 in a L*a*b* color system, and the transparent conductive layer contains a conductive polymer and has a b* value of less than 0 in the L*a*b* color system.
    Type: Application
    Filed: September 7, 2019
    Publication date: January 9, 2020
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Ryo SHODA, Tomohiko YAMAZAKI, Kei TSURUZOE, Kenji MATSUMASA, Miki FUKUGAMI, Kengo OKAMURA
  • PHOSPHOR PROTECTION FILM, WAVELENGTH CONVERSION SHEET, AND LIGHT-EMITTING UNIT
    Publication number: 20190187338
    Abstract: A phosphor protection film for protecting phosphors contained in a phosphor layer. The phosphor protection film includes a functional layer, a bulking layer that has a single-layer structure or a laminated structure, and a first vapor deposited layer (gas barrier layer) that has gas barrier properties in this order from outside to inside. The clearance between the functional layer and the first vapor deposited layer in the thickness direction of the phosphor protection film is 45 to 280 ?m.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 20, 2019
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Hiroki ICHIBA, Kei TSURUZOE