Patents by Inventor Shinya OGURO

Shinya OGURO 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: 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: 20210061733
    Abstract: Fluorine gas is introduced to a raw material liquid containing a reaction inducer and a fluorinated hydrocarbon represented by CpHqClrFs (in the formula, p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and having no carbon-carbon unsaturated bond to give tetrafluoromethane. The reaction inducer is a halogen-containing carbon compound liquid at room temperature and pressure and is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas. The reaction inducer is contained at a content of more than 0% by mass and not more than 10% by mass when the total content of the fluorinated hydrocarbon and the reaction inducer contained in the raw material liquid is 100% by mass.
    Type: Application
    Filed: December 11, 2018
    Publication date: March 4, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Yohsuke FUKUCHI, Tomokazu SUGAWARA, Shinya OGURO, Hiroshi KOBAYASHI
  • Publication number: 20210040021
    Abstract: Provided is a method for producing hexafluoro-1,3-butadiene, and the method can produce hexafluoro-1,3-butadiene at an industrially sufficient level of yield. In a reaction liquid containing a halogenated butane represented by chemical formula, CF2X1—CFX2—CFX3—CF2X4 (X1, X2, X3, and X4 are each independently a halogen atom other than a fluorine atom), zinc, and an organic solvent, a reaction is conducted to eliminate the halogen atoms other than a fluorine atom, X1, X2, X3, and X4, from the halogenated butane, yielding hexafluoro-1,3-butadiene. During the reaction, the concentration of a zinc halide generated by the reaction, in the reaction liquid is not more than the solubility of the zinc halide in the organic solvent.
    Type: Application
    Filed: June 3, 2019
    Publication date: February 11, 2021
    Applicant: SHOWA DENKO K.K.
    Inventors: Yohsuke FUKUCHI, Shinya OGURO, Nozomi INOUE
  • 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: 20200407295
    Abstract: A method for producing tetrafluoromethane as follows is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid containing a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (wherein p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and having no carbon-carbon unsaturated bond, fluorine gas is introduced, and concurrently a reaction inducer is introduced in a gas state, giving tetrafluoromethane. The reaction inducer is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas and is at least one reaction inducer selected from a hydrocarbon gaseous at normal temperature and pressure and hydrogen gas.
    Type: Application
    Filed: December 25, 2018
    Publication date: December 31, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Yohsuke FUKUCHI, Tomokazu SUGAWARA, 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