Patents by Inventor Keigo KUBOTA

Keigo KUBOTA 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: 20240129368
    Abstract: A server device configured to communicate, via a communication network, with at least one device including a learner configured to perform processing by using a learned model, includes processor, a transmitter, and a storage configured to store a plurality of shared models pre-learned in accordance with environments and conditions of various devices. The processor is configured to acquire device data including information on an environment and conditions from the at least one device, and select an optimum shared model for the at least one device based on the acquired device data. The transmitter is configured to transmit a selected shared model to the at least one device.
    Type: Application
    Filed: December 7, 2023
    Publication date: April 18, 2024
    Applicant: Preferred Networks, Inc.
    Inventors: Keigo Kawaai, Shohei Hido, Nobuyuki Kubota, Daisuke Tanaka
  • Patent number: 10998574
    Abstract: This invention provides a non-aqueous electrolyte magnesium secondary battery comprising a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, the non-aqueous electrolyte comprising [N(SO2CF3)2]? as an anion, and Mg2+ and/or an organic onium cation as a cation.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 4, 2021
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Keigo Kubota, Kenichi Teramoto, Rie Ooyabu, Hajime Matsumoto
  • Patent number: 10535897
    Abstract: The object of the present invention is to provide the gelatinous, molten salt having a high ion-conductivity and an excellent heat resistance. The object of the present invention can be solved by the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt on the surface thereof, and the molten salt composition comprising molten salt; or the method for increasing a viscosity of liquid molten salt characterized in that the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt in the surface thereof is added to the liquid molten salt.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 14, 2020
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hidetoshi Matsumoto, Takahiro Yuki, Yoichi Tominaga, Hajime Matsumoto, Keigo Kubota
  • Publication number: 20190165420
    Abstract: The present invention provides a magnesium secondary cell comprising a positive electrode, a negative electrode releasing magnesium ions, and a nonaqueous electrolyte. The nonaqueous electrolyte comprises a solvent and a magnesium sulfonamide salt represented by formula (I) below, Mg[X1—SO2—N—SO2—X2]2??(I) wherein X1 and X2 are identical or different and each represents CpF2p+1, or X1 and X2 are taken together to represent CqF2q, wherein p is 0, 1, 2, or 3, and q is 2, 3, or 4. The solvent is a mixed solvent comprising a sulfone-based solvent and an ether- or thioether-based solvent, or the solvent is a solvent comprising a sulfone moiety and an ether or thioether moiety.
    Type: Application
    Filed: February 28, 2017
    Publication date: May 30, 2019
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hajime MATSUMOTO, Rie OOYABU, Keigo KUBOTA, Kazumi TAKEDA
  • Publication number: 20180337426
    Abstract: The object of the present invention is to provide the gelatinous, molten salt having a high ion-conductivity and an excellent heat resistance. The object of the present invention can be solved by the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt on the surface thereof, and the molten salt composition comprising molten salt; or the method for increasing a viscosity of liquid molten salt characterized in that the inorganic nanofibers having a functional group which inter-molecularly interacts with the molten salt in the surface thereof is added to the liquid molten salt.
    Type: Application
    Filed: February 26, 2016
    Publication date: November 22, 2018
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hidetoshi MATSUMOTO, Takahiro YUKI, Yoichi TOMINAGA, Hajime MATSUMOTO, Keigo KUBOTA
  • Publication number: 20170294675
    Abstract: This invention provides a non-aqueous electrolyte magnesium secondary battery comprising a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, the non-aqueous electrolyte comprising [N(SO2CF3)2]? as an anion, and Mg2+ and/or an organic onium cation as a cation.
    Type: Application
    Filed: October 8, 2015
    Publication date: October 12, 2017
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Keigo KUBOTA, Kenichi TERAMOTO, Rie OOYABU, Hajime MATSUMOTO