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: 20210317061
    Abstract: An aim of the present disclosure is to provide a method for producing a fluoroalkoxide, said method being more useful than conventional methods, and the like. The aim can be achieved by a method for producing a compound represented by the following formula (1): (wherein R1 is a fluoroalkyl group optionally containing an oxygen atom between carbon atoms, or a fluoroalkoxy group optionally containing an oxygen atom between carbon atoms, and each R2 is identical to or different from each other and is a hydrocarbon group), the method comprising the step of reacting a compound represented by the following formula (2): with a compound represented by the following formula (3): ?F?NR2)4??(3).
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Naoyuki HOSHIYA, Yosuke KISHIKAWA
  • Publication number: 20210284593
    Abstract: An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound.
    Type: Application
    Filed: June 26, 2019
    Publication date: September 16, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Naoyuki HOSHIYA, Akihiro GOTOU, Yosuke KISHIKAWA
  • Publication number: 20210269383
    Abstract: An object of the present invention is to provide a novel method for producing an ?-fluoroacrylic acid ester compound. This problem is solved by a method for producing a compound represented by formula (1), wherein R1 and R2 are identical or different, and each represents an alkyl group or the like; and R3 is an alkyl group or the like, the method comprising step A of reacting a compound represented by formula (2) with R3—OH (3) and carbon monoxide in the presence of palladium, a double bond-containing compound (?), a diphosphine compound (?), and a base, to obtain the compound represented by formula (1) above.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 2, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro GOTOU, Yosuke KISHIKAWA, Naoyuki HOSHIYA, Makoto MATSUURA
  • Patent number: 11104639
    Abstract: A novel branched fluorine-containing compound represented by formula (1): (Rf—Yn1LX-A)n2??(1) wherein L represents a predetermined carbon-containing linker moiety; Rf, in each occurrence, is the same or different and represents fluoroalkyl optionally having at least one ether bond; Y, in each occurrence, is the same or different and represents a predetermined divalent linking group or a bond; RY, in each occurrence, is the same or different and represents hydrogen or an organic group; L represents an (n1+n2)-valent carbon-containing linker moiety having at least one carbon atom; n1 represents a number greater than or equal to 1; n2 represents a number greater than or equal to 1; n1+n2 is a number from 3 to 6; X, in each occurrence, is the same or different and represents a divalent linking group or a bond; A, in each occurrence, is the same or different and represents —ArSO3M or the like; M, in each occurrence, is the same or different and represents hydrogen, —NR4, or a metal salt; and R represents hydroge
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: August 31, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Higashi, Moe Hosokawa, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa
  • Patent number: 11091432
    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: Grant
    Filed: April 19, 2016
    Date of Patent: August 17, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Masahiro Higashi, Yosuke Kishikawa, Shoji Hara
  • Patent number: 11072580
    Abstract: A sulfuric acid ester containing a plurality of carbonyl groups or a salt thereof, and a surfactant. The sulfuric acid ester is a compound represented by the following formula: R1—C(?O)—R2—C(?O)—R3—OSO3X wherein R1, R2 and R3 are as defined herein; X is H, a metal atom, NR44, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent, where R4s are each H or an organic group and are the same as or different from each other; and any two of R1, R2, and R3 optionally bind to each other to form a ring.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 27, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoru Yoneda, Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa
  • Publication number: 20210221766
    Abstract: An object of the present invention is to provide a novel method for producing a fluorine-containing methylene compound. The above object can be achieved by a method for producing a compound represented by formula (1): wherein R1 represents an organic group, RA represents hydrogen or fluorine, R4a represents hydrogen or an organic group, R4b represents hydrogen or an organic group, R5a represents hydrogen or an organic group, R5b represents hydrogen or an organic group, and R2 represents hydrogen or an organic group; R2 is optionally connected to R4a to form a ring; the method comprising step A of reacting a compound represented by formula (2): wherein X1 represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3): wherein X2 represents a leaving group, and other symbols are as defined above, in the presence of a reducing agent as desired, under light irradiation.
    Type: Application
    Filed: June 20, 2019
    Publication date: July 22, 2021
    Applicants: DAIKIN INDUSTRIES, LTD., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Makoto MATSUURA, Yoshichika KUROKI, Yosuke KISHIKAWA, Ilhyong RYU, Takahide FUKUYAMA
  • Publication number: 20210221992
    Abstract: A polytetrafluoroethylene having a breaking strength of 10.0 N or more and a thermal instability index (TII) of 20 or more. Also disclosed is a stretched body including the polytetrafluoroethylene.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Yohei FUJIMOTO, Kenji ICHIKAWA, Hiroyuki SATO, Ryota USAMI, Yoshinori NANBA, Hirotoshi YOSHIDA, Kengo ITO, Chiaki OKUI, Masamichi SUKEGAWA, Taku YAMANAKA, Yosuke KISHIKAWA, Hirokazu AOYAMA, Satoru YONEDA, Sumi ISHIHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Shinnosuke NITTA, Marina NAKANO
  • Publication number: 20210206998
    Abstract: An object of the present invention is to provide a novel liquid repellent. A liquid repellent including a poly(hydrocarbylamine) derivative, which is poly(hydrocarbylamine) substituted by one or more substituents, wherein at least one of the substituents is a substituent on an amine nitrogen in the poly(hydrocarbylamine), and is represented by the formula: —Ray in which Ray is a hydroxyethyl group optionally having one or more substituents (at least one of the substituents is an alkyl group optionally having one or more substituents).
    Type: Application
    Filed: April 12, 2019
    Publication date: July 8, 2021
    Applicants: DAIKIN INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION OITA UNIVERSITY
    Inventors: Tsutomu KOBAYASHI, Atsushi SHIRAI, Yosuke KISHIKAWA, Seiji UJIIE, Shiori TOMITAKA
  • Publication number: 20210206740
    Abstract: A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MFn, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 8, 2021
    Applicants: DAIKIN INDUSTRIES, LTD., SAGA UNIVERSITY
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Tsugio KITAMURA
  • Publication number: 20210198228
    Abstract: A method for producing a cyclic carbonate represented by the following formula (1): wherein X1 and X2 are the same as or different from each other, and are each a hydrogen atom, a fluorine atom, or a monovalent organic group; and R is an organic group containing one or more carbon-carbon unsaturated bonds. The method includes reacting an unsaturated cyclic carbonate represented by the following formula (A): wherein X1 and X2 are defined as described above, and an alcohol represented by the formula (B): R—OH, wherein R is defined as described above, or an alkoxide thereof in the presence of a base, or reacting the unsaturated cyclic carbonate and the alkoxide. Also disclosed is a method for producing a cyclic carbonate.
    Type: Application
    Filed: September 20, 2018
    Publication date: July 1, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Akiyoshi YAMAUCHI, Kotaro HAYASHI, Yuuki SUZUKI, Yoshihiro YAMAMOTO, Yosuke KISHIKAWA
  • Publication number: 20210115224
    Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2 a—CO—R3a—OSO3Xa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-OSO3Xb.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NAN BA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Hiroyuki SATO, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO
  • Publication number: 20210114966
    Abstract: An object of the present invention is to provide a method for producing a fluorinated organic compound, whereby an iodosylbenzene derivative can be easily separated and recovered.
    Type: Application
    Filed: March 29, 2019
    Publication date: April 22, 2021
    Applicants: DAIKIN INDUSTRIES, LTD., SAGA UNIVERSITY
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Tsugio KITAMURA
  • Publication number: 20210108008
    Abstract: A method for producing a fluoropolymer of the invention which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R1a—CO—R2a—CO—R3a-Aa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-Ab.
    Type: Application
    Filed: March 30, 2018
    Publication date: April 15, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Manabu FUJISAWA, Kazuya ASANO, Takahiro KITAHARA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Shinnosuke NITTA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NANBA, Kengo ITO, Chiaki OKUI, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Yuuji TANAKA, Kenji ICHIKAWA, Yohei FUJIMOTO, Hiroyuki SATO
  • Publication number: 20210095054
    Abstract: A method for producing a fluoropolymer, which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer, wherein the surfactant is a carboxylic acid type hydrocarbon-containing surfactant.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 1, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hirotoshi YOSHIDA, Taketo KATO, Kenji ICHIKAWA, Yohei FUJIMOTO, Yoshinori NANBA, Kengo ITO, Masahiro HIGASHI, Satoru YONEDA, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Moe HOSOKAWA, Marina NAKANO, Yuuji TANAKA, Yosuke KISHIKAWA, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Hiroyuki SATO
  • Publication number: 20210087059
    Abstract: A method for producing a lithium sulfamate which includes (1) reacting a compound (1) represented by the following formula (1): wherein X is fluorine, chlorine, bromine, or iodine, with a compound (2) represented by the following formula (2): wherein R1 and R2 are each individually —H or a substituent as defined herein, the substituent optionally containing at least one bi- to hexavalent heteroatom in the structure and being a substituent in which at least one hydrogen atom is optionally replaced with a fluorine atom or a C0-C7 functional group, to obtain a compound (3) represented by the following formula (3): wherein R1 and R2 are defined as above.
    Type: Application
    Filed: March 11, 2019
    Publication date: March 25, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki SUZUKI, Akiyoshi YAMAUCHI, Tomoya HIDAKA, Kotaro HAYASHI, Yoshiko KUWAJIMA, Yoshihiro YAMAMOTO, Yosuke KISHIKAWA
  • Publication number: 20210070688
    Abstract: A carboxylic acid or sulfonic acid salt containing a plurality of carbonyl groups, and a surfactant represented by the following formula: R1—C(?O)—R2—C(?O)—R3-A wherein R1, R2 and R3 are as defined herein, and A is —COOX or —SO3X, wherein X is H, a metal atom, NR44, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent, where R4s are each H or an organic group and are the same as or different from each other; and any two of R1, R2, and R3 optionally bind to each other to form a ring.
    Type: Application
    Filed: October 1, 2020
    Publication date: March 11, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Higashi, Satoru Yoneda, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa, Hirokazu Aoyama
  • Publication number: 20210032472
    Abstract: A main object of the present invention is to provide a novel acetylpolyamine detection agent that is easy to produce and use. This object is achieved by an acetylpolyamine detection agent comprising compound (A) having one or more polyether rings, wherein the polyether rings have one or more hydroxyl groups as substituents.
    Type: Application
    Filed: January 31, 2019
    Publication date: February 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohito HAMADA, Yosuke KISHIKAWA, Masamichi SUKEGAWA
  • Publication number: 20210032381
    Abstract: A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer, the surfactant being represented by the general formula (1): CR1R2R4—CR3R5—X-A, wherein R1 to R5 are each H or a monovalent substituent, with the proviso that at least one of R1 and R3 represents a group represented by the general formula: —Y—R6 and at least one of R2 and R5 represents a group represented by the general formula: —X-A or a group represented by the general formula: —Y—R6; and A is the same or different at each occurrence and is —COOM, —SO3M, or —OSO3M. Also disclosed is a surfactant for polymerization represented by the general formula (1), a method for producing a fluoropolymer using the surfactant and a composition including a fluoropolymer and the surfactant.
    Type: Application
    Filed: February 7, 2019
    Publication date: February 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taketo KATO, Satoru YONEDA, Masahiro HIGASHI, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA, Moe HOSOKAWA, Marina NAKANO, Hirotoshi YOSHIDA, Yoshinori NANBA, Kengo ITO, Chiaki OKUI, Kenji ICHIKAWA, Yohei FUJIMOTO, Hirokazu AOYAMA, Masamichi SUKEGAWA, Taku YAMANAKA, Hiroyuki SATO
  • Publication number: 20210024450
    Abstract: An object of the present invention is to provide a method for producing a fluorinated organic compound, whereby an iodosylbenzene derivative can be easily separated and recovered. The above object can be achieved by a method for producing a fluorinated organic compound, comprising step A of fluorinating an organic compound (1) by reaction with a fluorine source (3) in the presence of a hypervalent iodine aromatic ring compound (2a), or in the presence of an iodine aromatic ring compound (2b) and an oxidant (2bo); wherein the fluorine source (3) is a fluorine source (3a) represented by formula: MFn, wherein M is H, a metal of Group 1 of the periodic table, or a metal of Group 2 of the periodic table; and n is 1 or 2; and step B of separating the iodine aromatic ring compound from a reaction liquid after step A is started.
    Type: Application
    Filed: March 29, 2019
    Publication date: January 28, 2021
    Applicants: DAIKIN INDUSTRIES, LTD., SAGA UNIVERSITY
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Tsugio KITAMURA