Patents by Inventor Yukiko Takenaka

Yukiko Takenaka 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: 11038145
    Abstract: A laminated film containing a gas barrier layer and an inorganic polymer layer laminated on a resin substrate, wherein a Y value calculated from a transmission electron microscope image of a cross section of the inorganic polymer layer by the following procedures (a) to (d) is 0.220 or less: (a) Calculating a standard deviation (?) of the contrast of an electron beam-unirradiated part of the inorganic polymer layer; (b) Dividing an electron beam-irradiated part of the inorganic polymer layer into twenty parts having a film thickness equal in a film thickness direction, and calculating a standard deviation (an: standard deviation of nth division, n=1˜20) of the contrast of each divided part; (c) Calculating Xn (n=1˜20) of each divided part from the expression (1): Xn=?n/? (n=1˜20) . . . (1); and (d) A standard deviation of X3 to X18 is defined as Y.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 15, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yutaka Ito, Yukiko Takenaka
  • Publication number: 20170288169
    Abstract: An object of the present invention is to provide a laminated film which can prevent permeation of the water vapor at the higher level, and the present invention provides a laminated film comprising at least a gas barrier layer and an inorganic polymer layer being laminated on a resin substrate, wherein a Y value calculated from a transmission electron microscope image of a cross section of the inorganic polymer layer by the following procedures (a) to (d) is 0.220 or less. (a) A standard deviation (?) of the contrast of an electron beam-unirradiated part of the inorganic polymer layer is calculated. (b) An electron beam-irradiated part of the inorganic polymer layer is divided into twenty so that divided ones have a film thickness equal in a film thickness direction, and a standard deviation (?n: standard deviation of nth division, n=1˜20) of the contrast of each divided part is calculated. (c) Xn (n=1˜20) of each divided part is calculated from the expression (1).
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yutaka ITO, Yukiko TAKENAKA
  • Patent number: 9362515
    Abstract: Disclosed is a photoelectric conversion element comprising an anode, a cathode, and an active layer between the anode and the cathode, wherein the active layer includes an n-type semiconductor and a p-type semiconductor, and an area of a p-n junction between the n-type semiconductor and the p-type semiconductor is 100 ?m2 or more per 1 ?m3 of the active layer.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: June 7, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasunori Uetani, Yoshiaki Honda, Yukiko Takenaka
  • Publication number: 20110108884
    Abstract: Disclosed is a photoelectric conversion element comprising an anode, a cathode, and an active layer between the anode and the cathode, wherein the active layer includes an n-type semiconductor and a p-type semiconductor, and an area of a p-n junction between the n-type semiconductor and the p-type semiconductor is 100 ?m2 or more per 1 ?m3 of the active layer.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 12, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasunori Uetani, Yoshiaki Honda, Yukiko Takenaka