Patents by Inventor Tsubasa ITAKURA

Tsubasa ITAKURA 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: 20250015365
    Abstract: A rechargeable battery has a metal anode with a solid electrolyte interphase (SEI) surface layer, a cathode with a halogen species integrated in a porous carbon material, an electrolyte with an organic solvent and a salt that is in contact with the anode and the cathode, and an oxidizing gas in contact with the electrolyte. The SEI layer has the composition M?B?C?N?F?X?O?, where M is a metal, B is boron, C is carbon, N is nitrogen, F is fluorine, X is a non-fluorine halogen species, and O is oxygen; ? is a number in the range of 0.2-0.4, ? is a number in the range of 0.0-0.1, ? is a number in the range of 0.15-0.25, ? is a number in the range of 0.0-0.02, ? is a number in the range of 0.0-0.1, ? is a number in the range of 0.005-0.02, ? is a number in the range of 0.40-0.60, and ?, ?, ?, ?, ?, ?, and ? are selected such that the sum of ?+?+?+?+?+?+?=1.
    Type: Application
    Filed: July 3, 2023
    Publication date: January 9, 2025
    Inventors: Maxwell Giammona, Yumi Kim, Andy Theodora Tek, Holt Bui, Young-hye Na, Murtaza Zohair, Rei Tsukazaki, Tsubasa Itakura, Katsutoshi Suzuki, Kazunari Takeda
  • Publication number: 20240006653
    Abstract: A rechargeable battery is disclosed. The rechargeable battery includes an anode, a cathode including a lithium-ion intercalation host, and an electrolyte including a solvent and a halogen-containing compounding that functions as an active cathode conversion material, wherein the electrolyte is in contact with the anode and the cathode.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Inventors: Young-Hye Na, Maxwell Giammona, Tsubasa Itakura, Saori Itabashi, Rei Tsukazaki, Katsutoshi Suzuki, Kazunari Takeda
  • Publication number: 20230275271
    Abstract: The present disclosure is to provide a nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery in which even if the nonaqueous electrolytic solution is applied to a positive electrode having a content of nickel of 30% by mass to 100% by mass in a metal contained in a positive electrode active material, an effect of improving output characteristics after cycle and an effect of reducing a deposition amount of a negative electrode current collector metal on a surface of a negative electrode after initial charging and discharging can be exerted in a well-balanced manner.
    Type: Application
    Filed: August 31, 2021
    Publication date: August 31, 2023
    Inventors: Katsutoshi SUZUKI, Arata TAKAHASHI, Ryota ESAKI, Wataru KAWABATA, Toru TANAKA, Tsubasa ITAKURA, Takayoshi MORINAKA, Mikihiro TAKAHASHI, Shuji HARADA
  • Patent number: 11515566
    Abstract: A rechargeable metal halide battery with an optimized active cathode electrolyte solution has high energy density and does not require charging following fabrication. The optimized active cathode electrolyte solution includes (i) a mixture of a metal halide and its corresponding halogen dissolved in an organic solvent at a concentration ratio greater than 0.5 and (ii) an oxidizing gas. The organic solvent is a nitrile-based compound and/or a heterocyclic compound. Glyme may be added to the organic solvent to improve battery performance.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: November 29, 2022
    Assignees: International Business Machines Corporation, Central Glass Co., Ltd.
    Inventors: Maxwell Giammona, Jangwoo Kim, Young-hye Na, Masafumi Oda, Tsubasa Itakura, Sho Yamazawa, Katsutoshi Suzuki, Kazunari Takeda
  • Patent number: 11281102
    Abstract: Provided is a fluorine-containing polymer which has no perfluoroalkyl group of 4 or more carbon atoms and which, when formed together with a photoacid generator into a film, shows water repellency after film formation, but becomes hydrophilic by the action of an acid generated under light irradiation, and thus serves as a pattern forming material capable of forming a film with high sensitivity and resolution. A fluorine-containing polymer according to the present invention has a repeating unit of the formula (1) where R1 is a hydrogen atom, a fluorine atom or a C1-C10 alkyl group; R2 to R5 are each independently a hydrogen atom or a C1-C10 alkyl group; X is a single bond or a divalent group; Y is a C1-C3 fluoroalkyl or carboxylate (—COOR) group; R is a C1-C3 fluoroalkyl group; and seven or less of hydrogen atoms contained in the substituent group may be substituted with fluorine.
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: March 22, 2022
    Assignee: Central Glass Company, Limited
    Inventors: Yuzuru Kaneko, Tsubasa Itakura, Ryo Nadano
  • Publication number: 20210336295
    Abstract: A rechargeable metal halide battery with an optimized active cathode electrolyte solution has high energy density and does not require charging following fabrication. The optimized active cathode electrolyte solution includes (i) a mixture of a metal halide and its corresponding halogen dissolved in an organic solvent at a concentration ratio greater than 0.5 and (ii) an oxidizing gas. The organic solvent is a nitrile-based compound and/or a heterocyclic compound. Glyme may be added to the organic solvent to improve battery performance.
    Type: Application
    Filed: April 26, 2020
    Publication date: October 28, 2021
    Inventors: Maxwell Giammona, Jangwoo Kim, Young-hye Na, Masafumi Oda, Tsubasa Itakura, Sho Yamazawa, Katsutoshi Suzuki, Kazunari Takeda
  • Publication number: 20210336296
    Abstract: A rechargeable metal halide battery with an optimized electrolyte formulation shows high capacity at fast charging rates. The optimized electrolyte includes a metal halide, an oxidizing gas, and a mixed-solvent solution that includes a glyme-based compound that is in a volume fraction of between 20-70 volume % of the mixed-solvent solution. The mixed-solvent solution may further include a nitrile compound and/or a heterocyclic compound.
    Type: Application
    Filed: April 26, 2020
    Publication date: October 28, 2021
    Inventors: Jangwoo Kim, Maxwell Giammona, Young-hye Na, Masafumi Oda, Tsubasa Itakura, Toru Tanaka, Katsutoshi Suzuki, Kazunari Takeda
  • Publication number: 20200089116
    Abstract: Provided is a fluorine-containing polymer which has no perfluoroalkyl group of 4 or more carbon atoms and which, when formed together with a photoacid generator into a film, shows water repellency after film formation, but becomes hydrophilic by the action of an acid generated under light irradiation, and thus serves as a pattern forming material capable of forming a film with high sensitivity and resolution. A fluorine-containing polymer according to the present invention has a repeating unit of the formula (1) where R1 is a hydrogen atom, a fluorine atom or a C1-C10 alkyl group; R2 to R5 are each independently a hydrogen atom or a C1-C10 alkyl group; X is a single bond or a divalent group; Y is a C1-C3 fluoroalkyl or carboxylate (—COOR) group; R is a C1-C3 fluoroalkyl group; and seven or less of hydrogen atoms contained in the substituent group may be substituted with fluorine.
    Type: Application
    Filed: May 28, 2018
    Publication date: March 19, 2020
    Inventors: Yuzuru KANEKO, Tsubasa ITAKURA, Ryo NADANO