Patents by Inventor Shigeaki Yamazaki

Shigeaki Yamazaki 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).

  • Patent number: 11945776
    Abstract: An electrolyte solution containing a compound represented by the following formula (1).
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: April 2, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiko Kuwajima, Akiyoshi Yamauchi, Kotaro Hayashi, Hisako Nakamura, Toshiharu Shimooka, Takaya Yamada, Yoshihiro Yamamoto, Shigeaki Yamazaki, Kenzou Takahashi
  • Publication number: 20240088381
    Abstract: A positive electrode mixture containing a polyvinylidene fluoride (A); a fluorine-containing copolymer (B) containing vinylidene fluoride unit and tetrafluoroethylene unit; a positive electrode active material (C) represented by the general formula (C): LiyNi1-xMxO2, wherein x is 0.01?x?0.7, y is 0.9?y?2.0, and M represents a metal atom (excluding Li and Ni); and an additive (D). Also disclosed is a positive electrode formed from the positive electrode mixture and a secondary battery including the positive electrode.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 14, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuma ICHINOSE, Shigeaki YAMAZAKI, Chihiro HOSODA, Kanako ARAI, Toshiharu SHIMOOKA
  • Patent number: 11929461
    Abstract: The present invention provides an electrolytic solution capable of providing an electrochemical device, such as a lithium ion secondary battery, or a module that has excellent high-temperature storage performance. The electrolytic solution contains: a homocyclic compound other than aromatic compounds; and a cyclic dicarbonyl compound. The homocyclic compound contains at least one group selected from the group consisting of a nitrile group and an isocyanate group.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: March 12, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kenzou Takahashi, Shinichi Kinoshita, Hideo Sakata, Shigeaki Yamazaki, Hiroyuki Arima
  • Publication number: 20240079595
    Abstract: A positive electrode mixture containing: a polyvinylidene fluoride (A); a positive electrode active material (C) represented by the general formula (C): LiyNi1-XMxO2, wherein x is 0.01?x?0.7, y is 0.9?y?2.0, and M represents a metal atom (excluding Li and Ni); and an additive (D), wherein the polyvinylidene fluoride (A) is a combination of: (A2) a polymer containing vinylidene fluoride unit and a fluorinated monomer unit; and at least one selected from the group consisting of (A3) a polymer containing vinylidene fluoride unit and a polar group-containing monomer unit, and (A4) a polymer containing vinylidene fluoride unit, a fluorinated monomer unit, and a polar group-containing monomer unit. Also disclosed is a positive electrode famed from the positive electrode mixture and a secondary battery including the positive electrode.
    Type: Application
    Filed: November 2, 2023
    Publication date: March 7, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuma ICHINOSE, Shigeaki YAMAZAKI, Chihiro HOSODA, Kanako ARAI, Toshiharu SHIMOOKA
  • Patent number: 11921467
    Abstract: A watch includes a crystal oscillator, a controller including an oscillation circuit configured to cause the crystal oscillator to oscillate, wiring that couples the crystal oscillator with the controller, and the crystal oscillator, a storage container that stores the crystal oscillator, the wiring, and the controller, and an outer case that stores the storage container, in which the crystal oscillator and the controller are placed side by side inside the storage container in plan view.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 5, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shigeaki Seki, Yutaka Yamazaki, Atsushi Miyazaki, Toshiya Usuda
  • Patent number: 11916195
    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: Grant
    Filed: March 11, 2019
    Date of Patent: February 27, 2024
    Assignee: 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
  • Patent number: 11888122
    Abstract: An electrolyte solution including a solvent, the solvent containing a compound (1a) represented by the following formula (1a); and a compound (2) represented by the following formula (2): wherein Re is a C1-C5 linear or branched alkyl group optionally containing an ether bond; Rf is a C1-C5 linear or branched alkyl group optionally containing an ether bond; and at least one of Re or Rf contains a fluorine atom. 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 or the lithium-ion secondary battery.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: January 30, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Shigeaki Yamazaki, Hiroyuki Arima, Kenzou Takahashi
  • Patent number: 11862765
    Abstract: An electrolyte solution for an alkali metal-sulfur-based secondary battery, an alkali metal-sulfur-based secondary battery, and a module containing the alkali metal-sulfur-based secondary battery. The electrolyte solution includes a positive electrode containing a carbon composite material that contains a carbon material and a sulfur-containing positive electrode active material. The carbon material has a pore volume ratio (micropores/mesopores) of 1.5 or higher. The electrolyte solution contains a fluorinated ether represented by the following formula (1): R11—(OR12)n11—O—R13. In the formula, R11 and R13 are the same as or different from each other, and are each an alkyl group optionally containing a fluorine atom, with at least one of R11 or R13 containing a fluorine atom; R12 is an alkylene group optionally containing a fluorine atom; and n11 is 0, 1, or 2.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: January 2, 2024
    Assignees: THE SCHOOL CORPORATION KANSAI UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Masashi Ishikawa, Yuya Torii, Satoshi Uchida, Masaki Yamagata, Shigeaki Yamazaki, Shinichi Kinoshita
  • Publication number: 20230387465
    Abstract: A compound and composition each capable of allowing an electrochemical device to have improved cycle characteristics, low resistance, and reduced gas generation. Also disclosed is an electrochemical device, a lithium-ion secondary battery, and a module each including the composition as an electrolytic solution. More particularly, the disclosure relates to an electrolytic solution containing a compound represented by the following formula (1): Rf1—O—Rf2??(1) wherein Rf1 and Rf2 are the same as or different from each other and are each a C2-C4 fluorinated alkenyl group.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Yoshiko Kuwajima, Toshiharu Shimooka, Shigeaki Yamazaki
  • Publication number: 20230378471
    Abstract: A binder containing a mixed powder including a polytetrafluoroethylene resin and a single-walled carbon nanotube. A weight ratio of the polytetrafluoroethylene resin to the single-walled carbon nanotube is 99.9:0.1 to 80:20. Also disclosed is a composition for producing an electrode in a form of a powder including the binder and an electrode active material substantially free of a liquid medium; an electrode mixture including the composition for producing an electrode; an electrode using the electrode mixture; a secondary battery having the electrode; a method for producing the binder; and a method for producing the electrode.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., MCD Technologies S.a.r.l.
    Inventors: Kae Fujiwara, Takaya Yamada, Chihiro Shinoda, Junpei Terada, Masahiko Yamada, Shigeaki Yamazaki, Mikhail Rudolfovich Predtechenskiy, Oleg Filippovich Bobrenok
  • Publication number: 20230250046
    Abstract: A method for producing a compound represented by formula (P1): (B1f)mp(A1)np, wherein B1f is RfCOO, Rf is a hydrocarbon having one or more fluorine atoms, A1 is a group excluding H, mp is (valence of A1)×np and is 1 or 2, np is mp/(valence of A1) and is 1, A1 has a valence of 1 or 2, the method comprising step A of reacting a compound represented by formula (S1): (B1f)(R1), wherein B1f is as defined above, and R1 is an organic group, and a compound represented by formula (S2): (A1)ms2(B2)ns2, wherein A1 is as defined above, B2 is OH, CO3, or HCO3, ms2 is (valence of B2)×ns2/(valence of A1) and is 1 or 2, and ns2 is (valence of A1)×ms2/(valence of B2) and 1 or 2, or a hydrate thereof. Such a method is a novel production method of a fluorinated carboxylic acid salt compound (preferably a fluorinated carboxylic acid salt compound having a low water content).
    Type: Application
    Filed: March 8, 2023
    Publication date: August 10, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Atsushi SHIRAI, Shigeaki YAMAZAKI, Yoshichika KUROKI, Tatsuya OHTSUKA
  • Patent number: 11715831
    Abstract: An electrochemical device which is an alkali metal battery or an alkaline earth metal battery, wherein only a positive electrode is an electrode having a perfluoropolyether group-containing compound in a surface thereof.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: August 1, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yoshiaki Honda, Shinichi Kinoshita, Shigeaki Yamazaki
  • Publication number: 20230231182
    Abstract: An all-solid-state secondary battery mixture, a secondary battery electrode mixture sheet containing the all-solid-state secondary battery mixture, and a secondary battery including the all-solid-state secondary battery sheet. Also provided is a method for producing an all-solid-state secondary battery sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The all-solid-state secondary battery mixture includes a solid-state electrolyte and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the all-solid-state secondary battery mixture sheet contains the all-solid-state secondary battery mixture.
    Type: Application
    Filed: February 28, 2023
    Publication date: July 20, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takaya YAMADA, Masahiko YAMADA, Shigeaki YAMAZAKI, Junpei TERADA, Kae FUJIWARA, Kentarou HIRAGA, Xianwei SUI
  • Publication number: 20230207821
    Abstract: A secondary battery electrode mixture, a secondary battery electrode mixture sheet containing the electrode mixture, and a secondary battery including the secondary battery electrode mixture sheet. Also provided is a method for producing an electrode mixture sheet containing a polytetrafluoroethylene resin having a fine fiber structure. The secondary battery electrode mixture includes an electrode active material and a binder. The binder is a polytetrafluoroethylene resin, and the polytetrafluoroethylene resin has a fibrous structure with a fibril diameter (median value) of 70 nm or less. In addition, the secondary battery electrode mixture sheet contains the electrode mixture.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takaya Yamada, Masahiko Yamada, Shigeaki Yamazaki, Junpei Terada, Kae Fujiwara, Kentarou Hiraga, Xianwei Sui
  • Publication number: 20230197967
    Abstract: Provided is a binder for a battery, including a fluorine-containing copolymer, wherein the fluorine-containing copolymer comprises a repeating unit (a) based on vinylidene fluoride and at least one repeating unit (b) selected from the group consisting of a repeating unit (bl) represented by a specific structural formula (bl) and a repeating unit (b2) represented by a structural formula (b2), and the fluorine-containing copolymer has a molar ratio of the repeating unit (a) to the repeating unit (b), (a)/(b), of 95/5 to 5/95.
    Type: Application
    Filed: February 7, 2023
    Publication date: June 22, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Junpei TERADA, Yuma Ichinose, Chihiro Hosoda, Takahiro Furutani, Shigeaki Yamazaki
  • Patent number: 11664534
    Abstract: An electrolyte solution containing a compound represented by the following formula (1): wherein R101 and R102 are the same as or different from each other and are each a hydrogen atom, a fluorine atom, or an alkyl group optionally containing a fluorine atom; and R103 is an alkyl group or an organic group containing an unsaturated carbon-carbon bond. Also disclosed is an electrochemical device and lithium ion secondary battery including the electrolyte solution, and a module including the electrochemical device or lithium ion secondary battery.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: May 30, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hisako Nakamura, Takaya Yamada, Shigeaki Yamazaki, Yuuki Suzuki, Kenzou Takahashi, Akiyoshi Yamauchi, Kotaro Hayashi
  • Publication number: 20230145113
    Abstract: An electrolytic solution containing: a compound (1) represented by the following formula (1): wherein R101 is a C2-C7 organic group and optionally includes at least one selected from the group consisting of a hetero atom and an unsaturated bond; and R102 is a C1-C3 organic group and optionally includes at least one selected from the group consisting of a hetero atom and an unsaturated bond.
    Type: Application
    Filed: November 21, 2022
    Publication date: May 11, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Yoshiko KUWAJIMA, Shigeaki YAMAZAKI, Toshiharu SHIMOOKA, Akinori TANI
  • Publication number: 20230148440
    Abstract: A binder for an electrochemical device made of a polymer material including a first polymer containing a first constituent unit having a guest group in a side chain; and a second polymer containing a second constituent unit having a host group in a side chain. Also disclosed is an electrode mixture containing the binder, an electrode active material and a dispersion medium; an electrode containing the binder, an electrode active material and a current collector; an electrochemical device including the electrode; and a secondary battery including the electrode.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 11, 2023
    Applicants: OSAKA UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Akira HARADA, Hiroyasu YAMAGUCHI, Yoshinori TAKASHIMA, Kentarou HIRAGA, Shigeaki YAMAZAKI, Fumihiko YAMAGUCHI, Akinari SUGIYAMA
  • Publication number: 20230129817
    Abstract: An electrolyte solution containing: a compound (1) represented by the following formula (1): wherein R101 to R103 are each independently a C1-C5 organic group optionally containing at least one selected from the group consisting of a hetero atom and an unsaturated bond, and R101 to R103 form no ring.
    Type: Application
    Filed: November 21, 2022
    Publication date: April 27, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya HIDAKA, Shigeaki YAMAZAKI, Yoshiko KUWAJIMA, Akinori TANI, Toshiharu SHIMOOKA
  • Patent number: 11631894
    Abstract: An electrolyte solution containing at least one selected from a compound (I) represented by the following formula (I) and specific compounds (II). The formula (I) is as follows: wherein R11 is a C2-C6 alkyl group. Also disclosed are a secondary battery containing the electrolyte solution and a module including the electrochemical device or the secondary battery.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 18, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya Hidaka, Kenzou Takahashi, Masakazu Kinoshita, Shigeaki Yamazaki