Patents by Inventor Yuuhei Inokuchi

Yuuhei Inokuchi 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: 11059272
    Abstract: There is provided a polarizing plate, including: a polarizing layer having a thickness not greater than 20 ?m; a first protective film stacked on one surface of the polarizing layer, with a first adhesive layer formed from an active energy ray curing adhesive being interposed; and a second protective film stacked on the other surface of the polarizing layer, with a second adhesive layer formed from a water-soluble adhesive being interposed. There are also provided a polarizing plate with a pressure sensitive adhesive layer, a substrate having a polarizing plate bonded thereto, a liquid crystal display device, and an organic electroluminescence display device, all of which include the polarizing plate. Preferably, at least one of the first protective film and the second protective film has a moisture permeability not higher than 1000 g/m2/24 hr.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: July 13, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Matsuno, Yuuhei Inokuchi
  • Publication number: 20200130332
    Abstract: There is provided a polarizing plate, including: a polarizing layer having a thickness not greater than 20 ?m; a first protective film stacked on one surface of the polarizing layer, with a first adhesive layer formed from an active energy ray curing adhesive being interposed; and a second protective film stacked on the other surface of the polarizing layer, with a second adhesive layer formed from a water-soluble adhesive being interposed. There are also provided a polarizing plate with a pressure sensitive adhesive layer, a substrate having a polarizing plate bonded thereto, a liquid crystal display device, and an organic electroluminescence display device, all of which include the polarizing plate. Preferably, at least one of the first protective film and the second protective film has a moisture permeability not higher than 1000 g/m2/24 hr.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Kenji MATSUNO, Yuuhei INOKUCHI
  • Patent number: 10549509
    Abstract: There is provided a polarizing plate, including: a polarizing layer having a thickness not greater than 20 ?m; a first protective film stacked on one surface of the polarizing layer, with a first adhesive layer formed from an active energy ray curing adhesive being interposed; and a second protective film stacked on the other surface of the polarizing layer, with a second adhesive layer formed from a water-soluble adhesive being interposed. There are also provided a polarizing plate with a pressure sensitive adhesive layer, a substrate having a polarizing plate bonded thereto, a liquid crystal display device, and an organic electroluminescence display device, all of which include the polarizing plate. Preferably, at least one of the first protective film and the second protective film has a moisture permeability not higher than 1000 g/m2/24 hr.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: February 4, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Matsuno, Yuuhei Inokuchi
  • Publication number: 20170282506
    Abstract: There is provided a polarizing plate, including: a polarizing layer having a thickness not greater than 20 ?m; a first protective film stacked on one surface of the polarizing layer, with a first adhesive layer formed from an active energy ray curing adhesive being interposed; and a second protective film stacked on the other surface of the polarizing layer, with a second adhesive layer formed from a water-soluble adhesive being interposed. There are also provided a polarizing plate with a pressure sensitive adhesive layer, a substrate having a polarizing plate bonded thereto, a liquid crystal display device, and an organic electroluminescence display device, all of which include the polarizing plate. Preferably, at least one of the first protective film and the second protective film has a moisture permeability not higher than 1000 g/m2/24 hr.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 5, 2017
    Inventors: Kenji MATSUNO, Yuuhei INOKUCHI
  • Publication number: 20160252660
    Abstract: There is provided a polarizing plate, including: a polarizing layer having a thickness not greater than 20 ?m; a first protective film stacked on one surface of the polarizing layer, with a first adhesive layer formed from an active energy ray curing adhesive being interposed; and a second protective film stacked on the other surface of the polarizing layer, with a second adhesive layer formed from a water-soluble adhesive being interposed. There are also provided a polarizing plate with a pressure sensitive adhesive layer, a substrate having a polarizing plate bonded thereto, a liquid crystal display device, and an organic electroluminescence display device, all of which include the polarizing plate. Preferably, at least one of the first protective film and the second protective film has a moisture permeability not higher than 1000 g/m2/24 hr.
    Type: Application
    Filed: October 22, 2014
    Publication date: September 1, 2016
    Inventors: Kenji MATSUNO, Yuuhei INOKUCHI
  • Publication number: 20090142517
    Abstract: Disclosed is a polarizing film (10) with an adhesive comprising a polarizing film (15) having a structure of amorphous cyclic polyolefin resin film (12)/polarizer (13)/protection film (14) and an adhesion layer (11) provided on an outer side of the amorphous cyclic polyolefin resin film (14), wherein the adhesion layer (11) has a gel content of 75 to 95 wt %. An optical laminate is obtained by bonding this polarizing film with adhesive (10) to one surface of a liquid crystal display glass cell (35). The second polarizing film (25) having a structure of protection film (22)/polarizer (23)/protection film (24) is bonded to the other surface of the glass cell (35) with interposing the second adhesion layer (21). When the protection film (22) is made from acetylcellulose, the second adhesion layer (21) is composed of a material having a low gel content.
    Type: Application
    Filed: May 24, 2007
    Publication date: June 4, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ryu Takeko, Masako Sugihara, Yuuhei Inokuchi, Ju Yeul Jang
  • Publication number: 20090115945
    Abstract: This invention provides a polarizing plate comprising a polarizer formed of a polyvinyl alcohol resin on which a dichroic dye is adsorbed and aligned. A protective film is stacked on both sides of the polarizer. At least one of the protective films is formed of a propylene resin. In stacking the protective film formed of propylene resin on at least one side of the polarizer, a method is advantageously adopted that the protective film on its surface to be applied onto the polarizer is subjected to corona discharge treatment and the polarizer is applied onto the treated face through an adhesive.
    Type: Application
    Filed: May 15, 2007
    Publication date: May 7, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuuhei Inokuchi, Yoshiki Matsuoka, Yuichiro Kunai, Hideo Kuroiwa
  • Publication number: 20090066888
    Abstract: Disclosed is a composite polarizing plate wherein a transparent protection layer (40) is formed on one side of a polarizer (30) which is composed of a polyvinyl alcohol resin and a retardation film (20) composed of a polypropylene resin is bonded to the other side of the polarizer (30), which is opposite to the side on which the transparent protection layer (40) is formed. The retardation film (20) composed of a polypropylene resin may be made of a homopolymer of propylene, or alternatively made of a copolymer with another monomer which mainly consists of propylene. A liquid crystal display is obtained by arranging this composite polarizing plate on at least one side of a liquid crystal cell (50).
    Type: Application
    Filed: April 24, 2007
    Publication date: March 12, 2009
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuichiro Kunai, Yoshiki Matsuoka, Hideo Kuroiwa, Tohru Nagashima, Yuuhei Inokuchi