Patents by Inventor Kohei SUMIDA

Kohei SUMIDA 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, Aerosol Composition, Cleaning Agent, Solvent, Silicone Solvent, Foaming Agent, Heat-Transfer Medium, Fire Extinguishing Agent, and Fumigant Containing the Composition, Heat-Transfer Device Containing the Heat-Transfer Medium, and System Containing the Heat-Transfer Device
    Publication number: 20230193161
    Abstract: An object is to provide a hydrofluoroolefin-based or hydrochlorofluoroolefin-based azeotropic or azeotropic-like composition. The azeotropic or azeotropic-like composition contains trans-1-chloro-3,3,3-trifluoropropene and 1-chloro-1,3,3,3-tetrafluoropropene. In the azeotropic or azeotropic-like composition, 1-chloro-1,3,3,3-tetrafluoropropene exists in an effective amount to form an azeotropic or azeotropic-like mixture with trans-1-chloro-3,3,3-trifluoropropene.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Inventors: Kanako OSAFUNE, Masamune OKAMOTO, Kohei SUMIDA, Naoki NISHINAKA
  • Method for producing 1,3-dichloro-3,3-difluoropropene
    Patent number: 10703693
    Abstract: A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated: CFaCl3-a—CH2—CHFbCl2-b??(1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: July 7, 2020
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Masamune Okamoto, Kohei Sumida, Kei Matsunaga, Yoshio Nishiguchi, Satoru Okamoto
  • Method for producing 1,2-dichloro-3,3,3-Trifluoropropene
    Patent number: 10611708
    Abstract: A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: April 7, 2020
    Assignee: Central Glass Company, Limited
    Inventors: Kei Matsunaga, Hideaki Imura, Masatomi Kanai, Masahiko Tani, Naoto Takada, Kohei Sumida, Satoru Okamoto
  • METHOD FOR PRODUCING 1,3-DICHLORO-3,3-DIFLUOROPROPENE
    Publication number: 20200010388
    Abstract: A manufacturing method of 1-chloro-3,3,3-trifluoropropene (1233zd) is provided. This manufacturing method includes a reaction in which a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) is heated: CFaCl3-a—CH2—CHFbCl2-b??(1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a=0, b is 0 or 1 when a=1, and b is 0 when a=2.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventors: Masamune OKAMOTO, Kohei SUMIDA, Kei MATSUNAGA, Yoshio NISHIGUCHI, Satoru OKAMOTO
  • Method or producing hydrohalofluoroolefins
    Patent number: 10513479
    Abstract: A method for isomerizing a hydrohalofluoroolefin isomer to produce a corresponding hydrohalofluoroolefin isomer includes a step contacting a composition that contains at least a hydrohalofluoroolefin isomer and that has been adjusted to 100 ppm or lower in moisture concentration, with a catalyst in a gas phase, thereby obtaining a product. This method makes it possible to suppress the catalyst performance lowering.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 24, 2019
    Assignee: Central Glass Company, Limited
    Inventors: Takamasa Kitamoto, Satoru Okamoto, Masahiko Tani, Masatomi Kanai, Kohei Sumida
  • Method for Producing 1,2-Dichloro-3,3,3-Trifluoropropene
    Publication number: 20190092711
    Abstract: A method for producing 1,2-dichloro-3,3,3-trifluoropropene according to the present invention includes the step of reacting 1,1,2,3,3-pentachloropropene with a fluorinating agent where hydrogen fluoride is used as the fluorinating agent.
    Type: Application
    Filed: April 10, 2017
    Publication date: March 28, 2019
    Inventors: Kei MATSUNAGA, Hideaki IMURA, Masatomi KANAI, Masahiko TANI, Naoto TAKADA, Kohei SUMIDA, Satoru OKAMOTO
  • Method for Producing Hydrohalofluoroolefins
    Publication number: 20180215689
    Abstract: A method for isomerizing a hydrohalofluoroolefin isomer to produce a corresponding hydrohalofluoroolefin isomer includes a step contacting a composition that contains at least a hydrohalofluoroolefin isomer and that has been adjusted to 100 ppm or lower in moisture concentration, with a catalyst in a gas phase, thereby obtaining a product. This method makes it possible to suppress the catalyst performance lowering.
    Type: Application
    Filed: May 27, 2016
    Publication date: August 2, 2018
    Applicant: Central Glass Company, Limited
    Inventors: Takamasa KITAMOTO, Satoru OKAMOTO, Masahiko TANI, Masatomi KANAI, Kohei SUMIDA