Patents by Inventor Yoshiko Kuwajima

Yoshiko Kuwajima 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: 20210399340
    Abstract: An electrolyte solution containing at least one compound represented by formula (1-1) and formula (1-2), formula (1-1) being: where R101 is an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C8 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C6-C12 aryl group, and optionally contains at least one selected from O, Si, S, and N in a structure; and formula (1-2) being: where R102 and R103 are (i) each individually H, F, an optionally fluorinated C1-C7 alkyl group, an optionally fluorinated C2-C7 alkenyl group, an optionally fluorinated C2-C9 alkynyl group, or an optionally fluorinated C5-C12 aryl group, or (ii) hydrocarbon groups binding to each other to form a 5-membered or 6-membered hetero ring with a nitrogen atom; and R102 and R103 each optionally contain at least one selected from O, S, and N in a structure.
    Type: Application
    Filed: January 9, 2019
    Publication date: December 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Yuuki SUZUKI, Kotaro HAYASHI, Hisako NAKAMURA, Takaya YAMADA, Toshiharu SHIMOOKA, Yoshihiro YAMAMOTO, Shigeaki YAMAZAKI, Kenzou TAKAHASHI
  • Publication number: 20210399344
    Abstract: An electrolyte solution for a lithium ion secondary battery containing at least one compound (1) selected from compounds represented by formulas (1A) and (1B): wherein R101 and R102, each independently, are a C5-C10 organic group, optionally contain at least one selected from a hetero atom and an unsaturated bond, and optionally contain a ring, wherein R103 to R105, each independently, are a C1-C10 organic group, optionally contain at least one selected from the group consisting of a hetero atom and an unsaturated bond, and optionally contain a ring.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Akinori TANI, Yoshiko KUWAJIMA
  • Publication number: 20210391597
    Abstract: An electrolyte solution containing a compound (1) represented by the formula (1): wherein R1 and R2 are each independently a C1-C4 alkyl group optionally containing an ether bond; and a compound (11) represented by the formula (11): wherein R101 and R102 are each independently a substituent that is a C1-C7 alkyl group or the like. The substituent optionally contains one or more divalent to hexavalent hetero atoms in its structure, with one or more hydrogen atoms each optionally replaced by a fluorine atom or a C0-C7 functional group. Also disclosed is an electrochemical device containing the electrolyte solution, a lithium ion secondary battery containing the electrolyte solution, and a module including the electrochemical device or the lithium ion secondary battery.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 16, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki Yamazaki, Akinori Tani, Yoshiko Kuwajima
  • Publication number: 20210384556
    Abstract: The disclosure provides an electrolyte solution capable of improving the output characteristics of an electrochemical device at initial stage and after high-temperature storage. The electrolyte solution contains a compound represented by the following formula (1). In the formula (1), R101s are each individually an optionally fluorinated organic group; X101s are each individually a halogen atom, —Rc101, or —ORc101, wherein Rc101 is an alkyl group or an aryl group; p1 is an integer of 1 to 4; and q1 is an integer satisfying p1+q1=4.
    Type: Application
    Filed: March 11, 2019
    Publication date: December 9, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Yuuki SUZUKI, Masakazu KINOSHITA, Kotaro HAYASHI, Tomoya HIDAKA, Kenzou TAKAHASHI
  • Publication number: 20210265664
    Abstract: An electrolyte solution containing a compound represented by formula (1) and a compound represented, for example, by formula (11-1), the formula (1) being: wherein M101 is P or P?O; R101 is a group such as a C1-C11 alkylsilyloxy group; n101 is an oxidation number of M101 minus 1 or an oxidation number of M101 minus 3; and R102 to R104 are each individually a group such as a C1-C11 alkyl group; the formula (11-1) being: wherein R111 and R112 are the same as or different from each other and are each an atom or group such as a hydrogen atom; and R113 is a group such as an alkyl group free from a fluorine atom.
    Type: Application
    Filed: March 18, 2019
    Publication date: August 26, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Tomoya HIDAKA, Masakazu KINOSHITA, Yuuki SUZUKI, Toshiharu SHIMOOKA, Hisako NAKAMURA, Takaya YAMADA, Shigeaki YAMAZAKI, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Yoshihiro YAMAMOTO, Kenzou TAKAHASHI
  • Publication number: 20210249700
    Abstract: A coated particle including a sulfide-based particle and a fluorine-containing polymer that coats a surface of the sulfide-based particle. The fluorine-containing polymer includes a structural unit (1) based on a monomer (1) represented by the following formula (1) and a structural unit (2) based on at least one selected from the group consisting of, for example, a monomer (2) represented by the following formula (2): wherein, for example, X is a hydrogen atom; Y is a direct bond; and Rf is a C1-C10 linear or branched fluoroalkyl group, wherein, for example, R1 is a hydrogen atom; and R2 is a hydrocarbon group. Also disclosed are positive and negative electrodes including the coated particle, an all-solid-state battery including the positive and negative electrodes and a coating composition for a sulfide-based all-solid-state battery.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 12, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Toshiharu SHIMOOKA, Akinori TANI, Kae FUJIWARA, Masamichi MORITA
  • Publication number: 20210246098
    Abstract: An electrolyte solution containing a compound represented by the following formula (1).
    Type: Application
    Filed: January 9, 2019
    Publication date: August 12, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Hisako NAKAMURA, Toshiharu SHIMOOKA, Takaya YAMADA, Yoshihiro YAMAMOTO, Shigeaki YAMAZAKI, Kenzou TAKAHASHI
  • Publication number: 20210234201
    Abstract: An electrolyte solution containing at least one compound (1) selected from a compound represented by the following formula (1-1) and a compound represented by the following formula (1-2), the formula (1-1) being: wherein R111 to R113 are each individually a C1-C4 linear alkyl group, the formula (1-2) being: wherein R121 to R123 are each individually a C1-C4 linear alkyl group.
    Type: Application
    Filed: April 12, 2019
    Publication date: July 29, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Takaya YAMADA, Shigeaki YAMAZAKI, Yuuki SUZUKI, Kenzou TAKAHASHI
  • Publication number: 20210198453
    Abstract: A composition including an inorganic filler; a copolymer of a fluoromonomer and an amide bond-containing polymerizable vinyl compound; and a solvent. Also disclosed is a laminate including a substrate and a film on the substrate obtained from the composition and a dispersant including a copolymer of a fluoromonomer and an amide bond-containing polymerizable vinyl compound.
    Type: Application
    Filed: July 16, 2019
    Publication date: July 1, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki SUZUKI, Toshiharu SHIMOOKA, Yoshiko KUWAJIMA, Tomoya HIDAKA, Shigeaki YAMAZAKI
  • Publication number: 20210194057
    Abstract: An electrolyte solution containing lithium ethyl sulfate and ethyl sulfate. The lithium ethyl sulfate is present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution. The lithium ethyl sulfate and the ethyl sulfate give a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. Also disclosed is an electrochemical device and lithium ion secondary battery containing the electrolyte solution, a module including the electrochemical device and a method for producing lithium ethyl sulfate.
    Type: Application
    Filed: September 13, 2018
    Publication date: June 24, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Shigeaki YAMAZAKI, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Kenzou TAKAHASHI
  • Publication number: 20210119256
    Abstract: An electrolyte solution containing at least one compound (1) selected from the group consisting of a compound represented by the following formula (1-1) (wherein R111 to R113 are each individually a C1-C4 linear or branched alkyl group, and at least one selected from R111 to R113 is a C1-C4 branched alkyl group) and a compound represented by the following formula (1-2) (wherein R121 to R123 are each individually a C1-C4 linear or branched alkyl group, and at least one selected from R121 to R123 is a C1-C4 branched alkyl group).
    Type: Application
    Filed: April 11, 2019
    Publication date: April 22, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Masakazu KINOSHITA, Yoshiko KUWAJIMA, Takaya YAMADA, Shigeaki YAMAZAKI, Kenzou TAKAHASHI, Yuuki SUZUKI
  • 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: 20210043974
    Abstract: An electrolyte solution containing a compound (1) represented by the formula (1), (wherein R101 and R102 are each individually a substituent such as a C1-C7 alkyl group, and the substituent optionally contains at least one divalent to hexavalent hetero atom in a structure or optionally has a structure obtained by replacing at least one hydrogen atom by a fluorine atom or a C0-C7 functional group) and at least one compound (11) selected from compounds such as a compound represented by formula (11-1) (wherein R111 and R112 are the same as or different from each other and are each a hydrogen atom or the like, and R113 is an alkyl group free from a fluorine atom or the like):
    Type: Application
    Filed: March 11, 2019
    Publication date: February 11, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masakazu KINOSHITA, Tomoya HIDAKA, Toshiharu SHIMOOKA, Shigeaki YAMAZAKI, Hisako NAKAMURA, Takaya YAMADA, Yuuki SUZUKI, Yoshiko KUWAJIMA, Kenzou TAKAHASHI, Akiyoshi YAMAUCHI, Kotaro HAYASHI
  • Publication number: 20210028492
    Abstract: An electrolyte solution containing a compound represented by the following formula (1).
    Type: Application
    Filed: March 11, 2019
    Publication date: January 28, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masakazu KINOSHITA, Tomoya HIDAKA, Yoshiko KUWAJIMA, Yuuki SUZUKI, Akiyoshi YAMAUCHI, Kotaro HAYASHI, Shigeaki YAMAZAKI, Kenzou TAKAHASHI, Takaya YAMADA
  • Publication number: 20210005933
    Abstract: An electrolyte solution containing LiFSO3 and a compound (1) represented by the following formula (1): LiZ, wherein Z is PF6, BF4, N(FSO2)2, N(CF3SO2)2, N(C2F5SO2)2, PO2F2, or B(C2O4)2. The electrolyte solution has a ratio [FSO3]/[Z] of a molar content of FSO3 [FSO3] to a molar content of Z [Z] of 3 to 1000. Also disclosed is an electrochemical device including the electrolyte solution, a lithium ion secondary battery including the electrolyte solution and a module including the electrochemical device.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 7, 2021
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Masakazu KINOSHITA, Yuuki SUZUKI, Shigeaki YAMAZAKI, Kenzou TAKAHASHI, Tomoya HIDAKA, Yoshiko KUWAJIMA, Akiyoshi YAMAUCHI, Kotaro HAYASHI
  • Publication number: 20200365945
    Abstract: An electrolyte solution containing at least one selected from a compound represented by the following formula (1-1) (wherein Rf111s are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group), a compound represented by the following formula (1-2) (wherein R121 is a C1-C4 alkyl group; and Rf121 is a C2-C4 fluorinated alkenyl group), and a compound represented by the following formula (1-3) (wherein Rf131 is a C1-C3 fluorinated alkyl group; and R131 is a C6-C12 aryl group):
    Type: Application
    Filed: October 26, 2018
    Publication date: November 19, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko KUWAJIMA, Kotaro HAYASHI, Hisako NAKAMURA, Takaya YAMADA, Yuuki SUZUKI, Shigeaki YAMAZAKI, Akiyoshi YAMAUCHI, Kenzou TAKAHASHI
  • Patent number: 10756384
    Abstract: The present invention provides an electrolytic solution capable of providing an electrochemical device (e.g., a lithium ion secondary battery) or a module that is less likely to generate gas even in high-temperature storage and has high capacity retention even after high-temperature storage. The present invention relates to an electrolytic solution which may contain a compound represented by Y21R21C—CY22R22 wherein R21 and R22 may be the same as or different from each other, and are each H, an alkyl group, or a halogenated alkyl group; Y21 and Y22 may be the same as or different from each other, and are each —OR23 or a halogen atom; and R23 is H, an alkyl group, or a halogenated alkyl group.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: August 25, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya Hidaka, Hideo Sakata, Kenzou Takahashi, Hiroyuki Arima, Shigeaki Yamazaki, Yoshiko Kuwajima, Shinichi Kinoshita
  • Publication number: 20200243911
    Abstract: The invention provides an electrolyte solution capable of providing an electrochemical device having low resistance and excellent high-temperature storage characteristics and cycle characteristics. The electrolyte solution contains lithium fluorosulfonate and a solvent containing a compound (1) represented by the following formula (1):CF2HCOOCH3.
    Type: Application
    Filed: July 31, 2018
    Publication date: July 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Yoshiko KUWAJIMA, Kenzou TAKAHASHI, Shigeaki YAMAZAKI, Hiroyuki ARIMA, Tomoya HIDAKA, Masakazu KINOSHITA, Hisako NAKAMURA, Takaya YAMADA, Toshiharu SHIMOOKA, Yuuki SUZUKI, Tatsuya OHTSUKA
  • Patent number: 10297865
    Abstract: The present invention provides an electrolyte solution that is capable of dealing with an increased voltage of an electrochemical device, improving the high-temperature storage characteristics, and restraining an increase in resistance, and an electrochemical device. The electrolyte solution includes a solvent containing a fluorinated acyclic carbonate having a fluorine content of 33 to 70 mass %, a borate, and an electrolyte salt other than the borate.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: May 21, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Shigeaki Yamazaki, Hideo Sakata, Hiroyuki Arima, Yoshiko Kuwajima, Shinichi Kinoshita
  • Publication number: 20180294515
    Abstract: The present invention provides an electrolytic solution capable of providing an electrochemical device (e.g., a lithium ion secondary battery) or a module that is less likely to generate gas even in high-temperature storage and has high capacity retention even after high-temperature storage. The present invention relates to an electrolytic solution which may contain a compound represented by Y21R21C—CY22R22 wherein R21 and R22 may be the same as or different from each other, and are each H, an alkyl group, or a halogenated alkyl group; Y21 and Y22 may be the same as or different from each other, and are each —OR23 or a halogen atom; and R23 is H, an alkyl group, or a halogenated alkyl group.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 11, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Hideo SAKATA, Kenzou TAKAHASHI, Hiroyuki ARIMA, Shigeaki YAMAZAKI, Yoshiko KUWAJIMA, Shinichi KINOSHITA