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: 20220127144
    Abstract: An object of this invention is to provide a simple method for producing sulfur tetrafluoride. The object is achieved by a method for producing sulfur tetrafluoride, comprising step A of reacting a fluorinated halogen compound with sulfur chloride, the fluorinated halogen compound being represented by formula: XFn, wherein X is chlorine, bromine, or iodine; and n is a natural number of 1 to 5.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya OHTSUKA, Yoshichika KUROKI, Atsushi SHIRAI, Moe HOSOKAWA, Yosuke KISHIKAWA
  • Patent number: 11279814
    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—R2a—CO—R3a—OSO3Xa and a surfactant represented by R1b—CO—(CR2b2)n—(OR3b)p—(CR4b2)q-L-OSO3Xb.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 22, 2022
    Assignee: 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, Hiroyuki Sato, Yuuji Tanaka, Kenji Ichikawa, Yohei Fujimoto
  • Publication number: 20220064139
    Abstract: The present disclosure provides, for example, a method that can produce a fluorolactone compound from hexafluoropropylene oxide or the like in a single step. The present disclosure relates to a method for producing a compound represented by formula (1): wherein two R1 are the same and each is a fluorine atom or a fluoroalkyl group, the method comprising step A of reacting a compound represented by formula (2): wherein R1 is as defined above, with a compound represented by formula (3): wherein R31, R32, and R33 are the same or different and each is a hydrogen atom or an alkyl group, or two of them are optionally linked to each other to form a ring optionally having one or more substituents, and a compound represented by formula (4-1) or the like: wherein R41, R42, R43, and R44 are the same or different and each is a hydrogen atom ox an alkyl group, or two of them are optionally linked to each other to form a ring optionally having one or more substituents.
    Type: Application
    Filed: November 8, 2021
    Publication date: March 3, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Moe HOSOKAWA, Koutarou HAYASHI, Yoshihiro YAMAMOTO, Akiyoshi YAMAUCHI, Makoto MATSUURA, Yosuke KISHIKAWA
  • Publication number: 20220064098
    Abstract: The present disclosure addresses the problem of providing a novel method for producing a fluorinated iodinated organic compound. The problem can be solved by a method for producing a fluorinated iodinated organic compound, comprising reacting a compound represented by formula (1): wherein R1 and R2 are each independently a hydrogen atom, a halogen atom, or an organic group, or R1 and R2 optionally form a ring together with the two adjacent carbon atoms; and n is 1 or 2, with a fluorine source, an iodine source, and an oxidizing agent or radical generator to add fluorine and iodine to the double bond or triple bond.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., SAGA UNIVERSITY
    Inventors: Masahiro HIGASHI, Yosuke KISHIKAWA, Tsugio KITAMURA
  • Patent number: 11261148
    Abstract: A method for producing a carbonyl compound represented by formula (1): wherein R1 is hydrogen or an organic group; R2 is hydrogen or an organic group; and R3 is hydrogen or an organic group; or two or three of R1, R2, and R3 may be linked to form a ring that may have at least one substituent, the method comprising step A of oxidizing an olefin compound represented by formula (2): wherein symbols are as defined above, by an oxidizing agent in the presence of (a) a non-alcohol organic solvent, (b) water, (c) a metal catalyst, and (d) an additive represented by the formula: MXn, wherein M is an element belonging to any one of Group 1, Group 2, Group 13, Group 14, and Group 15 in the periodic table, or NR4, wherein R is hydrogen or a C1-10 organic group; X is halogen; and n is a number of 1 to 5.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 1, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Higashi, Satoru Yoneda, Sumi Ishihara, Yosuke Kishikawa
  • Publication number: 20220055990
    Abstract: An object of this disclosure provides a novel method for producing a fluorovinyl amide compound and the like. The object is achieved by a method for producing a compound represented by formula (1): wherein Rf is —F or fluoroalkyl, Ra1 is —H or an organic group, and Ra2 is —H or an organic group, or (i) Ra1 and Ra2, (ii) Ra1 and Rf, or (iii) Rf and Ra2, may be linked to each other, Rb1 is —H or an organic group, and Rb2 is —H or an organic group, or Rb1 and Rb2 may be linked together with their adjacent atoms to form a nitrogen-containing ring optionally having one or more substituents, the method comprising step A of reacting a compound represented by formula (2): wherein Rx is a leaving group, with a compound represented by formula (3) or a salt thereof: in the presence of a transition metal catalyst.
    Type: Application
    Filed: December 5, 2019
    Publication date: February 24, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Naoyuki HOSHIYA, Motoshi MATSUI, Yosuke KISHIKAWA
  • Publication number: 20220033432
    Abstract: The present disclosure aims to provide an anti-hepatitis B virus agent, and a prophylactic or therapeutic agent for a hepatitis B virus-related disease, each comprising a nucleic acid analogue as an active ingredient. The above object can be attained by an anti-hepatitis B virus agent, or a prophylactic or therapeutic agent for a hepatitis B virus-related disease, each comprising, as an active ingredient, a compound represented by the following formula (1): wherein R is a halogen atom, an amino group, a methoxy group, or a cyano group, or its prodrug, or a pharmaceutically acceptable salt thereof, or a solvate thereof.
    Type: Application
    Filed: September 13, 2021
    Publication date: February 3, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., KAGOSHIMA UNIVERSITY
    Inventors: Tomohito HAMADA, Hideyuki IKEUCHI, Kanako INOO, Yosuke KISHIKAWA, Masanori IKEDA, Midori TAKEDA
  • Publication number: 20220008450
    Abstract: The present disclosure provides an anti-hepatitis B virus agent and a prophylactic or therapeutic agent for hepatitis B virus-related diseases, each comprising a nucleic acid analogue as an active ingredient. The problem can be solved by 2?-deoxy-2?-fluoro-?-2-fluoro-D-adenosine or its prodrug, or a pharmaceutically acceptable salt thereof, or a solvate thereof.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 13, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., KAGOSHIMA UNIVERSITY
    Inventors: Tomohito HAMADA, Yosuke KISHIKAWA, Kanako INOO, Masanori IKEDA, Midori TAKEDA
  • Patent number: 11198670
    Abstract: The invention provides a novel hydrocarbon-containing carboxylic acid, hydrocarbon-containing sulfonic acid, hydrocarbon-containing sulfuric acid ester, or a salt thereof, and a surfactant. Each of them is a compound represented by the following formula (1): CR1R2R4—CR3R5—X-A wherein R1 to R5 are each H or a monovalent substituent; at least one of R1 or R3 is a group represented by the formula: —Y—R6; at least one of R2 or R5 is a group represented by the formula: —X-A or a group represented by the formula: —Y—R6; and As at the respective appearances are the same as or different from each other, and are each —COOM, —SO3M, or —OSO3M.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 14, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Higashi, Satoru Yoneda, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa, Hirokazu Aoyama
  • Publication number: 20210371392
    Abstract: The present disclosure provides, for example, a method that can produce a fluorolactone compound from hexafluoropropylene oxide or the like in a single step.
    Type: Application
    Filed: August 10, 2021
    Publication date: December 2, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Moe HOSOKAWA, Koutarou HAYASHI, Yoshihiro YAMAMOTO, Akiyoshi YAMAUCHI, Yosuke KISHIKAWA, Yuuki SUZUKI, Akitoshi OGATA, Makoto MATSUURA
  • Publication number: 20210363077
    Abstract: The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound, in particular, a simple method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound (I) containing at least one —CF2— moiety, the method comprising step A of allowing IF5 and a disulfide compound (III) of the formula: RA—S—S—RA (wherein RA, in each occurrence, independently represents aryl optionally having at least one substituent or alkyl optionally having at least one substituent) to act on a carbonyl compound (II) containing at least one —C(O)— moiety.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 25, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya OHTSUKA, Yoshichika KUROKI, Atsushi SHIRAI, Moe HOSOKAWA, Yosuke KISHIKAWA
  • Publication number: 20210359296
    Abstract: A structure and composite suitable for a battery, and a battery containing the structure or composite. The structure includes: an electrode layer; an inorganic solid electrolyte layer; and a fluorine-containing polymer layer between the electrode layer and the inorganic solid electrolyte layer, the fluorine-containing polymer layer containing a composite that contains a fluorine-containing polymer and an alkali metal salt.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kotaro HAYASHI, Akiyoshi YAMAUCHI, Yosuke KISHIKAWA
  • Publication number: 20210355077
    Abstract: A novel branched fluorine-containing compound represented by formula (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 hydrogen or a C1-4 organi
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro HIGASHI, Moe HOSOKAWA, Akiyoshi YAMAUCHI, Sumi ISHIHARA, Yosuke KISHIKAWA
  • Publication number: 20210340098
    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 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. Also disclosed is a surfactant containing the sulfuric acid ester and an aqueous dispersant containing the sulfuric acid ester.
    Type: Application
    Filed: June 17, 2021
    Publication date: November 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoru YONEDA, Manabu Fujisawa, Kazuya Asano, Takahiro Kitahara, Masahiro Higashi, Akiyoshi Yamauchi, Sumi Ishihara, Yosuke Kishikawa
  • 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