Patents by Inventor Katsumi MIKAMI

Katsumi MIKAMI 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: 11427907
    Abstract: Provided is a gas supply apparatus for supplying a gas compound obtained by vaporizing a liquid compound to a target location, the gas supply apparatus comprising: a storage vessel capable of storing the liquid compound; a gas compound supply pipeline, one end of which is connected to the storage vessel, and another end of which is capable of being disposed at the target location; and a temperature control device configured to adjust a temperature of the gas compound or the liquid compound within the storage vessel to be equal to or lower than a surrounding temperature of the gas compound supply pipeline.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 30, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Takanori Aoki, Katsumi Mikami
  • Publication number: 20220251716
    Abstract: A method for producing fluorine gas including electrolyzing an electrolyte in an electrolytic cell, measuring an intensity of sound generated near an anode in an inside of the electrolytic cell as the electrolyte is electrolyzed in the electrolyzing, and sending a fluid generated in the inside of the electrolytic cell in the electrolyzing the electrolyte, from the inside to the outside of the electrolytic cell through a flow path. The flow path is switched in accordance with the intensity of sound measured, such that the fluid is sent to a first flow path when the intensity of sound measured in the measuring an intensity of sound is not more than a predetermined reference value, or the fluid is sent to a second flow path when the intensity of sound measured in the measuring an intensity of sound is more than the predetermined reference value.
    Type: Application
    Filed: December 11, 2020
    Publication date: August 11, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Yohsuke FUKUCHI, Hiroshi KOBAYASHI
  • Publication number: 20220251703
    Abstract: A gas supply method for supplying a gas compound obtained by vaporizing a liquid compound stored in a storage vessel to a target location through a gas compound supply pipeline, the gas supply method including adjusting a temperature of the liquid compound or the gas compound within the storage vessel to be equal to or lower than a surrounding temperature of the gas compound supply pipeline.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 11, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Takanori AOKI, Katsumi Mikami
  • Publication number: 20220235471
    Abstract: A method for producing fluorine gas including electrolyzing an electrolyte in an electrolytic cell, measuring an electric energy accumulated after the electrolyte is placed in the electrolytic cell, and the electrolyzing is started, and sending a fluid generated in the inside of the electrolytic cell in the electrolyzing the electrolyte, to the outside of the electrolytic cell through a flow path. In the sending, the flow path is switched in accordance with the electric energy measured in the measuring an electric energy, such that the fluid is sent to a first flow path that sends the fluid to a first outside when the electric energy measured in the measuring an electric energy is not less than a predetermined reference value, or the fluid is sent to a second flow path that sends the fluid to a second outside when the electric energy is less than the predetermined reference value.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 28, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Yohsuke FUKUCHI, Nozomi KUSUMOTO
  • Publication number: 20220228273
    Abstract: A device for producing fluorine gas has a first flow path configured to send a fluid from the inside of an electrolytic cell through a mist removal unit configured to remove mist from the fluid to a fluorine gas selection unit and a second flow path configured to send the fluid from the inside of the electrolytic cell to the fluorine gas selection unit without passing through the mist removal unit and has a flow path switching unit configured to switch a flow path through which the fluid flows depending on the average particle size of the mist measured by an average particle size measurement unit. The second flow path has a clogging suppression mechanism configured to suppress clogging of the second flow path by the mist.
    Type: Application
    Filed: December 3, 2020
    Publication date: July 21, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Yohsuke FUKUCHI, Hiroshi KOBAYASHI
  • Publication number: 20220213605
    Abstract: A method for producing fluorine gas including electrolyzing an electrolyte in an electrolytic cell, measuring the average particle size of a mist contained in a fluid generated in the inside of the electrolytic cell in the electrolyzing the electrolyte, and sending the fluid from the inside to the outside of the electrolytic cell through a flow path. The flow path in which the fluid flows is switched in accordance with the average particle size of the mist measured in the measuring the average particle size, such that the fluid is sent to a first flow path when the average particle size of the mist measured in the measuring the average particle size is not more than a predetermined reference value, or the fluid is sent to a second flow path when the average particle size is more than the predetermined reference value.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 7, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Yohsuke FUKUCHI, Hiroshi KOBAYASHI
  • Publication number: 20220213025
    Abstract: A method for producing a highly polymerizable N-vinyl carboxylic acid amide monomer includes (A) melting a crude N-vinyl carboxylic acid amide monomer comprising 50 to 88 mass % of an N-vinyl carboxylic acid amide monomer by heating, followed by cooling for precipitation, and subjecting precipitated N-vinyl carboxylic acid amide monomer crystals to solid-liquid separation (step (A)), and (B) further dissolving the N-vinyl carboxylic acid amide monomer crystals separated in the step (A) in a mixed solvent of ethyl acetate and an aliphatic hydrocarbon having 6 to 7 carbon atoms, then performing crystallization, performing solid-liquid separation, and recovering an N-vinyl carboxylic acid amide monomer purified product (step (B)), wherein a mass ratio of ethyl acetate/N-vinyl carboxylic acid amide monomer crystal in step (B) is 0.01 to 0.5, and a mass ratio of aliphatic hydrocarbon having 6 to 7 carbon atoms/N-vinyl carboxylic acid amide monomer crystal in step (B) is 0.5 to 3.0.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 7, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoyuki TANAKA, Katsumi MIKAMI, Takamitsu KOBAYASHI
  • Patent number: 11168043
    Abstract: Provided are a method and an apparatus for producing 1,2,3,4-tetrachlorobutane that are unlikely to lose 3,4-dichloro-1-butene as the material or 1,2,3,4-tetrachlorobutane as the product and can be stably and economically produce 1,2,3,4-tetrachlorobutane. A reaction liquid (1) containing 3,4-dichloro-1-butene is placed in a reaction container (11), then chlorine gas is supplied to a gas phase (2) in the reaction container (11), and the 3,4-dichloro-1-butene is reacted with the chlorine gas to give 1,2,3,4-tetrachlorobutane.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 9, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Katsumi Mikami, Yohsuke Fukuchi, Shinya Oguro, Hiroshi Kobayashi
  • Publication number: 20210292923
    Abstract: There is provided an anode for electrolytic synthesis capable of electrolytically synthesizing fluorine gas or a fluorine containing compound by a simple process and at a low cost while suppressing the occurrence of an anode effect. An anode for electrolytic synthesis (3) for electrolytically synthesizing fluorine gas or a fluorine containing compound includes an anode substrate formed of a carbonaceous material and a metal coating film coating the anode substrate. Metal constituting the metal coating film is nickel.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 23, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Yohsuke FUKUCHI, Katsumi MIKAMI, Hiroshi KOBAYASHI
  • Patent number: 10995046
    Abstract: There is provided a method of producing 1,2,3,4-tetrachlorobutane capable of stably and economically producing 1,2,3,4-tetrachlorobutane. A reactant solution (1) containing 3,4-dichloro-1-butene is charged in a reaction vessel (11) having an inner surface, to be brought into contact with the reactant solution (1), made of a metal and a chlorine gas is introduced into the reactant solution (1) to perform a reaction between 3,4-dichloro-1-butene and the chlorine gas to produce 1,2,3,4-tetrachlorobutane. The reaction is performed while carrying out an operation of taking out at least a portion of the reactant solution (1) from the reaction vessel (11), filtering the reactant solution (1) thus taken out to remove a solid matter, and returning the filtered reactant solution (1) into the reaction vessel (11).
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: May 4, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Katsumi Mikami, Nozomi Kusumoto, Shinya Oguro, Yohsuke Fukuchi
  • Publication number: 20210017105
    Abstract: Provided are a method and an apparatus for producing 1,2,3,4-tetrachlorobutane that are unlikely to lose 3,4-dichloro-1-butene as the material or 1,2,3,4-tetrachlorobutane as the product and can be stably and economically produce 1,2,3,4-tetrachlorobutane. A reaction liquid (1) containing 3,4-dichloro-1-butene is placed in a reaction container (11), then chlorine gas is supplied to a gas phase (2) in the reaction container (11), and the 3,4-dichloro-1-butene is reacted with the chlorine gas to give 1,2,3,4-tetrachlorobutane.
    Type: Application
    Filed: March 1, 2019
    Publication date: January 21, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Yohsuke FUKUCHI, Shinya OGURO, Hiroshi KOBAYASHI
  • Publication number: 20200346997
    Abstract: There is provided a method of producing 1,2,3,4-tetrachlorobutane capable of stably and economically producing 1,2,3,4-tetrachlorobutane. A reactant solution (1) containing 3,4-dichloro-1-butene is charged in a reaction vessel (11) having an inner surface, to be brought into contact with the reactant solution (1), made of a metal and a chlorine gas is introduced into the reactant solution (1) to perform a reaction between 3,4-dichloro-1-butene and the chlorine gas to produce 1,2,3,4-tetrachlorobutane. The reaction is performed while carrying out an operation of taking out at least a portion of the reactant solution (1) from the reaction vessel (11), filtering the reactant solution (1) thus taken out to remove a solid matter, and returning the filtered reactant solution (1) into the reaction vessel (11).
    Type: Application
    Filed: October 11, 2018
    Publication date: November 5, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Katsumi MIKAMI, Nozomi KUSUMOTO, Shinya OGURO, Yohsuke FUKUCHI
  • Publication number: 20190292660
    Abstract: Provided is a gas supply apparatus for supplying a gas compound obtained by vaporizing a liquid compound to a target location, the gas supply apparatus comprising: a storage vessel capable of storing the liquid compound; a gas compound supply pipeline, one end of which is connected to the storage vessel, and another end of which is capable of being disposed at the target location; and a temperature control device configured to adjust a temperature of the gas compound or the liquid compound within the storage vessel to be equal to or lower than a surrounding temperature of the gas compound supply pipeline.
    Type: Application
    Filed: July 11, 2017
    Publication date: September 26, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Takanori AOKI, Katsumi MIKAMI