Patents by Inventor Yosuke Kishikawa

Yosuke Kishikawa 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).

  • Publication number: 20180346404
    Abstract: A method for producing an asymmetric chain carbonate by reacting an alcohol with a halocarbonate ester compound in the presence of a basic magnesium salt.
    Type: Application
    Filed: November 22, 2016
    Publication date: December 6, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito HAMADA, Michiaki OKADA, Akiyoshi YAMAUCHI, Yosuke KISHIKAWA
  • Publication number: 20180327342
    Abstract: The present invention provides a method for producing a diol having a specific structure in high yields while keeping high selectivity. Provided is a method for producing a diol having a specific structure by oxidizing an olefin having a specific structure in the presence of a ruthenium compound.
    Type: Application
    Filed: November 22, 2016
    Publication date: November 15, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito HAMADA, Michiaki OKADA, Akinori YAMAMOTO, Yosuke KISHIKAWA
  • Patent number: 10099997
    Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein R1 and R2 are the same or different, and each represents alkyl, fluoroalkyl, aryl that may have one or more substituents, halogen, or hydrogen; R3 represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluoroalkyl, alkyl, halogen, or hydrogen); and (B) alcohol, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 16, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito Hamada, Yosuke Kishikawa, Makoto Matsuura, Asako Yoshiyama
  • Patent number: 10065917
    Abstract: The problem solved by the present invention is to provide a method for efficiently purifying acrylic acid derivative (I), more specifically a method for efficiently eliminating alcohol (II) from a composition containing acrylic acid derivative (I) and alcohol (II).
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: September 4, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto Matsuura, Yosuke Kishikawa, Asako Yoshiyama
  • Publication number: 20180222843
    Abstract: The problem solved by the present invention is to provide a method for efficiently purifying acrylic acid derivative (I), more specifically a method for efficiently eliminating alcohol (II) from a composition containing acrylic acid derivative (I) and alcohol (II).
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto MATSUURA, Yosuke KISHIKAWA, Asako YOSHIYAMA
  • Publication number: 20180222842
    Abstract: An object of the present invention is to provide a method for efficiently eliminating water from a composition containing an acrylic acid derivative and water. This problem is solved by a method for eliminating water from a composition A containing: (A) an acrylic acid derivative represented by Formula (I): wherein R1 and R2 are identical or different, and each represents alkyl, fluoroalkyl, aryl that may have one or more substituents, halogen, or hydrogen, R3 represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen, and X represents alkyl, fluoroalkyl, halogen, or hydrogen; and (B) water, the method comprising step A of bringing the composition A into contact with a zeolite.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto MATSUURA, Yosuke KISHIKAWA, Asako YOSHIYAMA, Sumi ISHIHARA
  • Publication number: 20180134648
    Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein, R1 and R2 are the same or different, and each represents alkyl, fluoroalkyl, aryl that may have one or more substituents, halogen, or hydrogen; Rc represents a group: —OR3 (wherein R3 represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen) or halogen; and X represents fluoroalkyl, alkyl, hydrogen, or halogen); and (B) amide, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.
    Type: Application
    Filed: April 8, 2016
    Publication date: May 17, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Makoto MATSUURA, Asako YOSHIYAMA, Yosuke KISHIKAWA
  • Publication number: 20180111898
    Abstract: An object of the present invention is to provide a method for producing a fluorinated organic compound with a high yield without using carbon tetrachloride in view of the fact that the production of a fluorinated organic compound with a sufficient yield was impossible for a hitherto-known method that uses a fluorinating agent that contains IF5-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent that is capable of achieving this object. The present invention provides a composition comprising (1) IF5 and (2) an aprotic solvent (with the proviso that carbon tetrachloride is excluded), wherein the aprotic solvent is contained in an amount within a range of 50 mass ppm to 20 mass %.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 26, 2018
    Applicants: DAIKIN INDUSTRIES, LTD., National University Corporation Hokkaido University
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Shoji HARA
  • Patent number: 9950984
    Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: April 24, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
  • Publication number: 20180099922
    Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Ra represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.
    Type: Application
    Filed: April 8, 2016
    Publication date: April 12, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito HAMADA, Makoto MATSUURA, Asako YOSHIYAMA, Akihiro GOTOU, Manaho MIYAZAKI, Yosuke KISHIKAWA
  • Publication number: 20180093940
    Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein R1 and R2 are the same or different, and each represents alkyl, fluoroalkyl, aryl that may have one or more substituents, halogen, or hydrogen; R3 represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluoroalkyl, alkyl, halogen, or hydrogen); and (B) alcohol, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.
    Type: Application
    Filed: April 8, 2016
    Publication date: April 5, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito HAMADA, Yosuke KISHIKAWA, Makoto MATSUURA, Asako YOSHIYAMA
  • Publication number: 20170267626
    Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
  • Patent number: 9758455
    Abstract: Object: An object of the present invention is to provide a method for producing, with a high yield, a fluorinated organic compound, the fluorinated organic compound having not been produced with a sufficient yield by a conventional method for producing a fluorinated organic compound using a fluorinating agent containing IF5-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent. Means for achieving the object: A method for producing a fluorinated organic compound comprising step A of fluorinating an organic compound by bringing the organic compound into contact with (1) IF5-pyridine-HF and (2) at least one additive selected from the group consisting of amine hydrogen fluorides, XaF (wherein Xa represents hydrogen, potassium, sodium, or lithium), oxidizers, and reducing agents.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: September 12, 2017
    Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Masahiro Higashi, Yosuke Kishikawa, Atsushi Shirai, Takashi Namikawa, Sumi Ishihara, Shoji Hara
  • Patent number: 9732027
    Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: August 15, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
  • Patent number: 9701614
    Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: July 11, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
  • Patent number: 9593058
    Abstract: An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: March 14, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Atsushi Shirai, Masatoshi Nose, Yosuke Kishikawa, Tatsuya Ohtsuka, Sumi Ishihara
  • Publication number: 20160332877
    Abstract: An object of the present invention is to provide a novel substance that has a high reactivity as a fluorinating agent, is effectively used in various fluorination reactions, and is safely handled even in air. As the solution for achieving this object, the present invention provides a complex obtained by reacting bromine trifluoride with at least one metal halide selected from the group consisting of halogenated metals and halogenated hydrogen metals in a nonpolar solvent. This complex serves as a fluorinating agent that provides excellent fluorination performance and that is stable in air.
    Type: Application
    Filed: October 2, 2014
    Publication date: November 17, 2016
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Shoji HARA, Yosuke KISHIKAWA, Atsushi SHIRAI, Takashi NAMIKAWA, Sumi ISHIHARA
  • Publication number: 20160318842
    Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH ??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).
    Type: Application
    Filed: December 26, 2014
    Publication date: November 3, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
  • Publication number: 20160221900
    Abstract: An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.
    Type: Application
    Filed: September 3, 2014
    Publication date: August 4, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Atsushi SHIRAI, Masatoshi NOSE, Yosuke KISHIKAWA, Tatsuya OHTSUKA, Sumi ISHIHARA
  • Publication number: 20150315136
    Abstract: Object: An object of the present invention is to provide a method for producing, with a high yield, a fluorinated organic compound, the fluorinated organic compound having not been produced with a sufficient yield by a conventional method for producing a fluorinated organic compound using a fluorinating agent containing IF5-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent. Means for achieving the object: A method for producing a fluorinated organic compound comprising step A of fluorinating an organic compound by bringing the organic compound into contact with (1) IF5-pyridine-HF and (2) at least one additive selected from the group consisting of amine hydrogen fluorides, XaF (wherein Xa represents hydrogen, potassium, sodium, or lithium), oxidizers, and reducing agents.
    Type: Application
    Filed: April 1, 2015
    Publication date: November 5, 2015
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Atsushi SHIRAI, Takashi NAMIKAWA, Sumi ISHIHARA, Shoji HARA