Patents by Inventor Mana SHIMOKAWA

Mana SHIMOKAWA 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).

  • Separation method for halogenated unsaturated carbon compound
    Patent number: 11053180
    Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: July 6, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • Method for isolating HFC-245cb and (E)-HFO-1234ze from composition containing both compounds
    Patent number: 10836692
    Abstract: The present invention provides a method for separating HFC-245cb and (E)-HFO-1234ze having close boiling points, i.e., boiling points with only 1° C. difference, by extractive distillation from a composition containing the HFC-245cb and the (E)-HFO-1234ze. More specifically, the present invention is a method for separating HFC-245cb and (E)-HFO-1234ze from a composition containing the HFC-245cb and the (E)-HFO-1234ze, the method comprising subjecting the composition to extractive distillation using at least one extractant selected from the group consisting of halogenated hydrocarbons, halogenated unsaturated hydrocarbons, nitriles, ketones, carbonates, alcohols, hydrocarbons, esters and ethers.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 17, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Mana Shimokawa, Tatsuya Takakuwa, Kazuhiro Takahashi
  • SEPARATION METHOD FOR HALOGENATED UNSATURATED CARBON COMPOUND
    Publication number: 20200239389
    Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • Separation method for halogenated unsaturated carbon compound
    Patent number: 10654775
    Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: May 19, 2020
    Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
  • SEPARATION METHOD FOR HALOGENATED UNSATURATED CARBON COMPOUND
    Publication number: 20180222823
    Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).
    Type: Application
    Filed: June 15, 2016
    Publication date: August 9, 2018
    Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITY
    Inventors: Tatsuya MORIKAWA, Mana SHIMOKAWA, Katsuki FUJIWARA, Satoshi TOKUNO, Masakazu HIGUCHI, Susumu KITAGAWA
  • METHOD FOR ISOLATING HFC-245cb AND (E)-HFO-1234ze FROM COMPOSITION CONTAINING BOTH COMPOUNDS
    Publication number: 20170320798
    Abstract: The present invention provides a method for separating HFC-245cb and (E)-HFO-1234ze having close boiling points, i.e., boiling points with only 1° C. difference, by extractive distillation from a composition containing the HFC-245cb and the (E)-HFO-1234ze. More specifically, the present invention is a method for separating HFC-245cb and (E)-HFO-1234ze from a composition containing the HFC-245cb and the (E)-HFO-1234ze, the method comprising subjecting the composition to extractive distillation using at least one extractant selected from the group consisting of halogenated hydrocarbons, halogenated unsaturated hydrocarbons, nitriles, ketones, carbonates, alcohols, hydrocarbons, esters and ethers.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 9, 2017
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mana SHIMOKAWA, Tatsuya TAKAKUWA, Kazuhiro TAKAHASHI