Patents by Inventor Yuka IGAMI

Yuka IGAMI 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: 11815659
    Abstract: The present invention provides a spectacle lens having low surface resistivity. This spectacle lens includes a spectacle lens base and a hard coat layer. When a primer layer is included between the spectacle lens base material and the hard coat layer, the primer layer and/or the hard coat layer contains at least one type of electroconductive filler selected from the group consisting of ionic liquid-coated nanowires containing metal nanowires and an ionic liquid coating the metal nanowire, and ionic liquid-coated nanoparticles containing metal nanoparticles and an ionic liquid coating the metal nanoparticles. When the primer layer is not included between the spectacle lens base material and the hard coat layer, the hard coat layer contains the at least one type of electroconductive filler selected from the group consisting of the ionic liquid-coated nanowires and ionic liquid-coated nanoparticles.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 14, 2023
    Assignee: NIKON-ESSILOR CO., LTD.
    Inventor: Yuka Igami
  • Publication number: 20220244432
    Abstract: The present invention provides a spectacle lens having low surface resistivity. This spectacle lens includes a spectacle lens base and a hard coat layer. When a primer layer is included between the spectacle lens base material and the hard coat layer, the primer layer and/or the hard coat layer contains at least one type of electroconductive filler selected from the group consisting of ionic liquid-coated nanowires containing metal nanowires and an ionic liquid coating the metal nanowire, and ionic liquid-coated nanoparticles containing metal nanoparticles and an ionic liquid coating the metal nanoparticles. When the primer layer is not included between the spectacle lens base material and the hard coat layer, the hard coat layer contains the at least one type of electroconductive filler selected from the group consisting of the ionic liquid-coated nanowires and ionic liquid-coated nanoparticles.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 4, 2022
    Applicant: NIKON-ESSILOR CO.,LTD.
    Inventor: Yuka IGAMI
  • Publication number: 20210317336
    Abstract: The present invention provides a composition for forming a hard coat layer, which is capable of forming a hard coat layer that exhibits excellent adhesion to an adjacent layer, while having excellent hardness. A composition for forming a hard coat layer according to the present invention contains: a (meth)acrylate which has at least one group that is selected from the group consisting of a phosphoric acid group and a sulfonic acid group; a silsequioxane which has a radically polymerizable group; and metal oxide particles.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Applicant: NIKON-ESSILOR CO., LTD.
    Inventor: Yuka IGAMI
  • Patent number: 9698204
    Abstract: A CCM substrate (1) includes as a light-emitting layer on a substrate (11) a red conversion layer (142), a green conversion layer (152), and a light scattering layer (162); a bank (13) which stands on the substrate (11), and partitions the light-emitting layer; and a light-transmission suppressing layer (10) which is formed on at least a portion of a side surface (13a) of the bank (13) which is a surface facing the light-emitting layer, and suppresses light transmission between the light-emitting layers (the red conversion layer (142), the green conversion layer (152), and the light scattering layer (162)) with the bank (13) interposed therebetween by causing the light to be reflected or scattered, in which the light-transmission suppressing layer (10) is comprising metal or metal salt, and the bank (13) has a group, an ion, or a molecule for immobilizing the metal or metal ion.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 4, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakazu Kamura, Shun Ueki, Akiko Iwata, Yuka Igami, Bai Zhang, Shigeru Aomori, Hidetsugu Matsukiyo
  • Publication number: 20160372528
    Abstract: A CCM substrate (1) includes as a light-emitting layer on a substrate (11) a red conversion layer (142), a green conversion layer (152), and a light scattering layer (162); a bank (13) which stands on the substrate (11), and partitions the light-emitting layer; and a light-transmission suppressing layer (10) which is formed on at least a portion of a side surface (13a) of the bank (13) which is a surface facing the light-emitting layer, and suppresses light transmission between the light-emitting layers (the red conversion layer (142), the green conversion layer (152), and the light scattering layer (162)) with the bank (13) interposed therebetween by causing the light to be reflected or scattered, in which the light-transmission suppressing layer (10) is comprising metal or metal salt, and the bank (13) has a group, an ion, or a molecule for immobilizing the metal or metal ion.
    Type: Application
    Filed: December 5, 2014
    Publication date: December 22, 2016
    Inventors: Masakazu KAMURA, Shun UEKI, Akiko IWATA, Yuka IGAMI, Bai ZHANG, Shigeru AOMORI, Hidetsugu MATSUKIYO