Patents by Inventor Tomohiro Takeyasu

Tomohiro Takeyasu 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).

  • Publication number: 20220351878
    Abstract: A transparent electrically conductive film includes a transparent substrate, a cured resin layer, and a transparent electrically conductive layer in order. The transparent electrically conductive layer has film density of below 6.85 g/cm3.
    Type: Application
    Filed: September 17, 2020
    Publication date: November 3, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Masanori Matsumoto, Hiroshi Beppu, Tomohiro Takeyasu
  • Publication number: 20210065927
    Abstract: A transparent electrically conductive film 1 sequentially includes a transparent substrate 2 and an electrically conductive layer 3 toward one side in a thickness direction. The electrically conductive layer 3 includes a visible region 10 and a frame region 11 disposed in a peripheral edge portion of the visible region 10. The visible region 10 includes a transparent electrically conductive layer 4. The frame region 11 includes a conductive layer 5, the transparent electrically conductive layer 4, and an electrically conductive adhesive layer 6 disposed therebetween for achieving adhesion of the conductive layer 5 to the transparent electrically conductive layer 4. The transparent electrically conductive layer 4 includes a metal nanowire.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 4, 2021
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Hideki Nobesawa
  • Patent number: 10310681
    Abstract: A translucent conductive film includes a film substrate, a metal wiring layer provided as a pattern, and a colored layer. The film substrate has a plurality of protrusions on a surface at a side where the metal wiring layer is provided. The metal wiring layer has a line width of greater than 5 ?m but less than 8 ?m, and the metal wiring layer having a thickness of greater than or equal to 0.1 ?m but less than 0.5 ?m. The colored layer is provided on a main surface of the metal wiring layer at a viewing side but not on a side surface of the metal wiring layer.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 4, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Ikuo Kawamoto, Hitoshi Morita, Akira Arima
  • Patent number: 10082917
    Abstract: To provide a touch senor having an improved productivity, and also achieving high reliability since there is no occurrence of a wire break in a metal wiring and having good usability since the metal wiring layer is less likely to be visually recognized. A touch senor of the present invention includes a film substrate (11) having a plurality of protrusions on both surfaces (11a), (11b) thereof, a metal wiring layer (12) provided over one surface (11a) of the film substrate, a circular polarizer film (14) provided at a viewing side A of film substrate (11), and a metal wiring layer (15) provided over the other surface (11b) of the film substrate (11). The metal wiring layer (12) has a line width of greater than 5 ?m but less than or equal to 8 ?m, and a thickness of greater than or equal to 0.1 ?m but less than 0.5 ?m.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 25, 2018
    Assignee: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Ikuo Kawamoto
  • Patent number: 9798424
    Abstract: A transparent conductive film includes a film base, and a polycrystalline layer of indium tin oxide formed on the film base. The polycrystalline layer has a gradient of a concentration of tin oxide in a thickness direction thereof. A maximum value of the concentration of tin oxide in the thickness direction of the polycrystalline layer is 6 wt % to 12 wt %. The polycrystalline layer has a thickness of 10 nm to 35 nm. An average value of maximum sizes of crystal grains composing the polycrystalline layer is 380 nm to 730 nm.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: October 24, 2017
    Assignee: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Yusuke Yamamoto, Minoru Kanatani, Kazuaki Sasa
  • Publication number: 20170123530
    Abstract: A translucent conductive film includes a film substrate, a metal wiring layer provided as a pattern, and a colored layer. The film substrate has a plurality of protrusions on a surface at a side where the metal wiring layer is provided. The metal wiring layer has a line width of greater than 5 ?m but less than 8 ?m, and the metal wiring layer having a thickness of greater than or equal to 0.1 ?m but less than 0.5 ?m. The colored layer is provided on a main surface of the metal wiring layer at a viewing side but not on a side surface of the metal wiring layer.
    Type: Application
    Filed: March 25, 2015
    Publication date: May 4, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Ikuo Kawamoto, Hitoshi Morita, Akira Arima
  • Publication number: 20170031481
    Abstract: A touch sensor includes a film substrate having a plurality of protrusions on both surfaces thereof, a first metal wiring layer provided as a pattern over a surface at a viewing side of the film substrate, a circular polarizer film laminated at a viewing side of the first metal wiring layer, and a second metal wiring layer provided as a pattern over a surface at a side opposite to the viewing side of the film substrate. Each of the first and second metal wiring layers has a line width of greater than 5 ?m but less than 8 ?m, and each of the first and second metal wiring layers has a thickness of greater than or equal to 0.1 ?m but less than 0.5 ?m.
    Type: Application
    Filed: March 31, 2015
    Publication date: February 2, 2017
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Ikuo Kawamoto
  • Publication number: 20140141237
    Abstract: A transparent conductive film includes a film base, and a polycrystalline layer of indium tin oxide formed on the film base. The polycrystalline layer has a gradient of a density of tin oxide in a thickness direction thereof. A maximum value of the density of tin oxide in the thickness direction of the polycrystalline layer is 6 wt % to 12 wt %. The polycrystalline layer has a thickness of 10 nm to 35 nm. An average value of maximum sizes of crystal grains composing the polycrystalline layer is 380 nm to 730 nm.
    Type: Application
    Filed: October 16, 2013
    Publication date: May 22, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tomohiro Takeyasu, Yusuke Yamamoto, Minoru Kanatani, Kazuaki Sasa