Patents by Inventor Kosuke MAKIGUCHI

Kosuke MAKIGUCHI 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).

  • Composition useful for producing acidic gas separation membrane
    Patent number: 11850558
    Abstract: The present invention provides a composition containing the following components (A)-(C): (A) an alkali metal compound, (B) a polymer having an acidic dissociative group, and (C) a compound having an acidic dissociative group and an amino group, and having ? of more than 0.0 and less than 1.0 as calculated by the formula (I): ?={amount (mol) of alkali metal in component (A)?amount (mol) of acidic dissociative group in component (B)}/amount (mol) of acidic dissociative group in component (C).
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: December 26, 2023
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shohei Kasahara, Kosuke Makiguchi, Taigo Kashiwabara
  • RESIN COMPOSITION FOR GAS SEPARATION MEMBRANE AND GAS SEPARATION MEMBRANE
    Publication number: 20230390711
    Abstract: A resin composition for a gas separation membrane contains a crosslinked polymer (X) having a carboxy group or a salt thereof and a crosslinked structure. A mesh size of the crosslinked polymer (X) is greater than or equal to 1.75 nm and less than or equal to 2.35 nm.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 7, 2023
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Akinori BANDO, Kosuke MAKIGUCHI, Hajime HOSODA, Ayumi AOKI, Taigo KASHIWABARA
  • ACIDIC GAS SEPARATION MEMBRANE, ACIDIC GAS SEPARATION DEVICE, METHOD FOR PRODUCING ACIDIC GAS SEPARATION MEMBRANE, AND ACIDIC GAS SEPARATION METHOD
    Publication number: 20220274052
    Abstract: An acidic gas separation membrane is selectively permeable to an acidic gas, and includes a first porous layer and a resin composition layer formed on the first porous layer with use of a resin composition. The resin composition contains a modified polyamine obtained by introducing at least one of an acidic dissociable group and a salt thereof into a polyamine. The acidic dissociable group is at least one selected from the group consisting of a carboxy group, a sulfonic acid group, an oxysulfonic acid group, a phosphoric acid group, and an oxyphosphoric acid group. The polyamine is at least one selected from the group consisting of polyethyleneimine, polyallylamine, and polyvinylamine.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 1, 2022
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Taigo KASHIWABARA, Kosuke MAKIGUCHI, Ayumi AOKI, Tatsuhiko ADACHI, Hiroaki KUWABARA
  • COMPOSITION USEFUL FOR PRODUCING ACIDIC GAS SEPARATION MEMBRANE
    Publication number: 20220047996
    Abstract: The present invention provides a composition containing the following components (A)-(C): (A) an alkali metal compound, (B) a polymer having an acidic dissociative group, and (C) a compound having an acidic dissociative group and an amino group, and having ? of more than 0.0 and less than 1.0 as calculated by the formula (I): ?={amount (mol) of alkali metal in component (A)?amount (mol) of acidic dissociative group in component (B)}/amount (mol) of acidic dissociative group in component (C).
    Type: Application
    Filed: September 12, 2019
    Publication date: February 17, 2022
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Shohei KASAHARA, Kosuke MAKIGUCHI, Taigo KASHIWABARA
  • Separation membrane sheet, separation membrane element, separation membrane module, and manufacturing method for separation membrane sheet
    Patent number: 11045761
    Abstract: A separation membrane sheet that causes a specific fluid component to selectively permeate therethrough, comprises: a first porous layer; and a resin composition layer formed on the first porous layer. The resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%; and contains a resin having an ionic group or a salt thereof, and has an ion exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: June 29, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shohei Kasahara, Kosuke Makiguchi
  • SEPARATION MEMBRANE SHEET, SEPARATION MEMBRANE ELEMENT, SEPARATION MEMBRANE MODULE, AND MANUFACTURING METHOD FOR SEPARATION MEMBRANE SHEET
    Publication number: 20200406184
    Abstract: A separation membrane sheet that causes a specific fluid component to selectively permeate therethrough, comprises: a first porous layer; and a resin composition layer formed on the first porous layer. The resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%; and contains a resin having an ionic group or a salt thereof, and has an ion exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 31, 2020
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shohei KASAHARA, Kosuke MAKIGUCHI