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).
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Publication number: 20180346404Abstract: 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: ApplicationFiled: November 22, 2016Publication date: December 6, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito HAMADA, Michiaki OKADA, Akiyoshi YAMAUCHI, Yosuke KISHIKAWA
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Publication number: 20180327342Abstract: 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: ApplicationFiled: November 22, 2016Publication date: November 15, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito HAMADA, Michiaki OKADA, Akinori YAMAMOTO, Yosuke KISHIKAWA
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Patent number: 10099997Abstract: 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: GrantFiled: April 8, 2016Date of Patent: October 16, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito Hamada, Yosuke Kishikawa, Makoto Matsuura, Asako Yoshiyama
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Patent number: 10065917Abstract: 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: GrantFiled: August 5, 2016Date of Patent: September 4, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Makoto Matsuura, Yosuke Kishikawa, Asako Yoshiyama
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Publication number: 20180222843Abstract: 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: ApplicationFiled: August 5, 2016Publication date: August 9, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto MATSUURA, Yosuke KISHIKAWA, Asako YOSHIYAMA
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Publication number: 20180222842Abstract: 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: ApplicationFiled: August 5, 2016Publication date: August 9, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto MATSUURA, Yosuke KISHIKAWA, Asako YOSHIYAMA, Sumi ISHIHARA
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Publication number: 20180134648Abstract: 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: ApplicationFiled: April 8, 2016Publication date: May 17, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto MATSUURA, Asako YOSHIYAMA, Yosuke KISHIKAWA
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Publication number: 20180111898Abstract: 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: ApplicationFiled: April 19, 2016Publication date: April 26, 2018Applicants: DAIKIN INDUSTRIES, LTD., National University Corporation Hokkaido UniversityInventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Shoji HARA
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Patent number: 9950984Abstract: 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: GrantFiled: June 6, 2017Date of Patent: April 24, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
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Publication number: 20180099922Abstract: 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: ApplicationFiled: April 8, 2016Publication date: April 12, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito HAMADA, Makoto MATSUURA, Asako YOSHIYAMA, Akihiro GOTOU, Manaho MIYAZAKI, Yosuke KISHIKAWA
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Publication number: 20180093940Abstract: 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: ApplicationFiled: April 8, 2016Publication date: April 5, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito HAMADA, Yosuke KISHIKAWA, Makoto MATSUURA, Asako YOSHIYAMA
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Publication number: 20170267626Abstract: 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: ApplicationFiled: June 6, 2017Publication date: September 21, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
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Patent number: 9758455Abstract: 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: GrantFiled: April 1, 2015Date of Patent: September 12, 2017Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Masahiro Higashi, Yosuke Kishikawa, Atsushi Shirai, Takashi Namikawa, Sumi Ishihara, Shoji Hara
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Patent number: 9732027Abstract: 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: GrantFiled: December 26, 2014Date of Patent: August 15, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
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Patent number: 9701614Abstract: 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: GrantFiled: December 26, 2014Date of Patent: July 11, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
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Patent number: 9593058Abstract: 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: GrantFiled: September 3, 2014Date of Patent: March 14, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Atsushi Shirai, Masatoshi Nose, Yosuke Kishikawa, Tatsuya Ohtsuka, Sumi Ishihara
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Publication number: 20160332877Abstract: 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: ApplicationFiled: October 2, 2014Publication date: November 17, 2016Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Shoji HARA, Yosuke KISHIKAWA, Atsushi SHIRAI, Takashi NAMIKAWA, Sumi ISHIHARA
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Publication number: 20160318842Abstract: 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: ApplicationFiled: December 26, 2014Publication date: November 3, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
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Publication number: 20160221900Abstract: 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: ApplicationFiled: September 3, 2014Publication date: August 4, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Atsushi SHIRAI, Masatoshi NOSE, Yosuke KISHIKAWA, Tatsuya OHTSUKA, Sumi ISHIHARA
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Publication number: 20150315136Abstract: 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: ApplicationFiled: April 1, 2015Publication date: November 5, 2015Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Atsushi SHIRAI, Takashi NAMIKAWA, Sumi ISHIHARA, Shoji HARA