Patents by Inventor Mitsugu KASAGAWA

Mitsugu KASAGAWA 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: 10981857
    Abstract: The present invention provides a production method of ?-fluoroacrylate ester, a composition containing a highly-pure fluorocyclopropane derivative and a composition containing highly-pure ?-fluoroacrylate ester.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: April 20, 2021
    Assignee: AGC INC.
    Inventors: Takashi Akiya, Mitsugu Kasagawa, Naoki Ichinokawa, Yu Onozaki, Satoshi Kawaguchi, Yusuke Tomiyori, Arata Yasuda
  • Patent number: 10781151
    Abstract: A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of copper, gold, lithium, potassium, silver, zinc, tin, lead, and bismuth.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 22, 2020
    Assignee: AGC Inc.
    Inventors: Shinji Terazono, Xu Wang, Masahiro Kanda, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Patent number: 10703696
    Abstract: The method for isomerizing an organic compound comprises a step of selecting an alumina so that the acid amount calculated from the amount of ammonia desorbed at a desorption temperature of at least 300° C. by temperature-programmed desorption of ammonia is at least 0.10 mmol/g and at most 0.25 mmol/g; a step of fluorinating the selected alumina by a fluorinating agent to produce a partially fluorinated alumina; and a step of isomerizing, by using the obtained partially fluorinated alumina, an organic compound having at least two carbon atoms wherein to at least one of the adjacent carbon atoms, at least one fluorine atom is bonded and to the other, at least one chlorine atom or hydrogen atom is bonded.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: July 7, 2020
    Assignee: AGC Inc.
    Inventors: Taku Yamada, Yusuke Suzuki, Mitsugu Kasagawa
  • Publication number: 20190263746
    Abstract: The present invention provides a production method of ?-fluoroacrylate ester, a composition containing a highly-pure fluorocyclopropane derivative and a composition containing highly-pure ?-fluoroacrylate ester.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 29, 2019
    Applicant: AGC INC.
    Inventors: Takashi AKIYA, Mitsugu KASAGAWA, Naoki ICHINOKAWA, Yu ONOZAKI, Satoshi KAWAGUCHI, Yusuke TOMIYORI, Arata YASUDA
  • Publication number: 20190241490
    Abstract: A useful evaluation method which enables highly efficient production of a partially fluorinated alumina having good catalytic activities is discovered, and a method for isomerizing an organic compound whereby it becomes possible to improve a conversion rate in the desired isomerization reaction is provided. The method for isomerizing an organic compound comprises a step of selecting an alumina so that the acid amount calculated from the amount of ammonia desorbed at a desorption temperature of at least 300° C. by temperature-programmed desorption of ammonia is at least 0.10 mmol/g and at most 0.25 mmol/g; a step of fluorinating the selected alumina by a fluorinating agent to produce a partially fluorinated alumina; and a step of isomerizing, by using the obtained partially fluorinated alumina, an organic compound having at least two carbon atoms wherein to at least one of the adjacent carbon atoms, at least one fluorine atom is bonded and to the other, at least one chlorine atom or hydrogen atom is bonded.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Applicant: AGC Inc.
    Inventors: Taku YAMADA, Yusuke Suzuki, Mitsugu Kasagawa
  • Patent number: 10252971
    Abstract: To provide a novel method for producing a halogenated acrylic acid derivative. A compound represented by the formula (1): (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or R1 and R2 together form a ring, R3 is a monovalent group capable of being desorbed by R3OH removal reaction, and each of R4 and R5 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom) and having a boiling point of at most 500° C.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: April 9, 2019
    Assignee: AGC Inc.
    Inventors: Arata Yasuda, Mitsugu Kasagawa
  • Patent number: 10189758
    Abstract: To provide a method for producing a hydrofluoroolefin, wherein formation of an over-reduced product having hydrogen added to an aimed hydrofluorolefin and an over-reduced product having some of fluorine atoms in the aimed product replaced with hydrogen atoms, as by-products, is suppressed. A method for producing a hydrofluoroolefin, which comprises reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier, to obtain a specific hydrofluoroolefin, wherein the catalyst is a catalyst composed of particles of an alloy containing at least one platinum group metal selected from the group consisting of palladium and platinum, and gold, and the proportion of the gold at the surface of the alloy particles is from 5 to 30 mass % per 100 mass % in total of the platinum group metal and the gold at the surface of the alloy particles.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: January 29, 2019
    Assignee: AGC Inc.
    Inventors: Xu Wang, Shinji Terazono, Yuki Hayasaka, Toshio Suzuki, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Publication number: 20180251414
    Abstract: A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of copper, gold, lithium, potassium, silver, zinc, tin, lead, and bismuth.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Shinji TERAZONO, Xu Wang, Masahiro Kanda, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Patent number: 9988327
    Abstract: A method for producing a hydrofluoroolefin is provided. The formation of by-products of an over-reduced product having hydrogen added to a material chlorofluoroolefin and an over-reduced product having not only chlorine atoms but also fluorine atoms in the chlorofluoroolefin replaced with hydrogen atoms is suppressed in the method. The method includes reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier to obtain the hydrofluoroolefin. The catalyst is a catalyst composed of an alloy containing at least one platinum group element of palladium and platinum, and at least one second element of manganese, copper, aluminum, gold, lithium, sodium, potassium, magnesium, silver, zinc, cadmium, indium, silicon, germanium, tin, lead, arsenic, antimony, and bismuth.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 5, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Shinji Terazono, Xu Wang, Masahiro Kanda, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Patent number: 9902672
    Abstract: A hydrofluoroolefin is produced by reacting a chlorofluoroolefin with hydrogen in the presence of a platinum group metal catalyst supported on a carbon carrier to obtain a hydrofluoroolefin. The chlorofluoroolefin is represented by formula (1): CZX?CClY, where X is F or Cl, Y is F, Cl or H, and Z is F or CF3. The hydrofluoroolefin is represented by formula (2): CZX? ?CHY?, where X? is F when X is F, or X? is H when X is Cl, Y? is F when Y is F, or Y? is H when Y is Cl or H, and Z is the same as Z in the formula (1). The carbon carrier has acidic functional groups, and the total acidic functional group amount in the carbon carrier is at most 50 ?mol/g.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: February 27, 2018
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Xu Wang, Shinji Terazono, Masahiro Kanda, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Publication number: 20170267613
    Abstract: To provide a method for producing a hydrofluoroolefin, wherein formation of an over-reduced product having hydrogen added to an aimed hydrofluorolefin and an over-reduced product having some of fluorine atoms in the aimed product replaced with hydrogen atoms, as by-products, is suppressed. A method for producing a hydrofluoroolefin, which comprises reacting a specific chlorofluoroolefin with hydrogen in the presence of a catalyst supported on a carrier, to obtain a specific hydrofluoroolefin, wherein the catalyst is a catalyst composed of particles of an alloy containing at least one platinum group metal selected from the group consisting of palladium and platinum, and gold, and the proportion of the gold at the surface of the alloy particles is from 5 to 30 mass % per 100 mass % in total of the platinum group metal and the gold at the surface of the alloy particles.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 21, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Xu Wang, Shinji Terazono, Yuki Hayasaka, Toshio Suzuki, Satoshi Kawaguchi, Mitsugu Kasagawa
  • Publication number: 20170144949
    Abstract: A method for producing a hydrofluoroolefin, which comprises reacting a chlorofluoroolefin represented by the following formula (1) with hydrogen in the presence of a platinum group metal catalyst supported on a carbon carrier, to obtain a hydrofluoroolefin represented by the following formula (2), wherein the carbon carrier has acidic functional groups, and the total acidic functional group amount in the carbon carrier is at most 50 ?mol/g: CZX?CClY ??(1) wherein X is F or Cl, Y is F, Cl or H, and Z is F or CF3; CZX??CHY???(2) wherein X? is F when X is F, or X? is H when X is Cl, Y? is F when Y is F, or Y? is H when Y is Cl or H, and Z is the same as Z in the formula (1).
    Type: Application
    Filed: February 6, 2017
    Publication date: May 25, 2017
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Xu WANG, Shinji TERAZONO, Masahiro KANDA, Satoshi KAWAGUCHI, Mitsugu KASAGAWA
  • Publication number: 20170057902
    Abstract: To provide a novel method for producing a halogenated acrylic acid derivative. A compound represented by the formula (1): (wherein each of R1 and R2 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom, or R1 and R2 together form a ring, R3 is a monovalent group capable of being desorbed by R3OH removal reaction, and each of R4 and R5 which are independent of each other, is a hydrogen atom or a monovalent group essentially containing a carbon atom) and having a boiling point of at most 500° C.
    Type: Application
    Filed: February 29, 2016
    Publication date: March 2, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Arata YASUDA, Mitsugu KASAGAWA