Patents by Inventor Tomomi Asai

Tomomi Asai 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: 12352820
    Abstract: A server for a deterioration degree determination system for a secondary battery includes an estimation formula memory unit and an update unit. The estimation formula memory unit stores an estimation formula for determining a deterioration degree based on a battery characteristic related to transition of a battery state over a predetermined voltage section in the secondary battery or a battery characteristic relationship value related to the battery characteristic. The update unit that updates the estimation formula stored in the estimation formula memory unit based on the battery characteristic related to the transition of the battery state of the secondary battery acquired by charging and discharging the secondary battery in an external terminal.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: July 8, 2025
    Assignee: DENSO CORPORATION
    Inventors: Tomomi Asai, Nobuo Yamamoto, Hiroyasu Suzuki, Katsuki Hayashi, Yuya Minabe
  • Publication number: 20250067812
    Abstract: A vehicle battery assessment system includes an information acquisition unit, a learned model acquisition unit, a remaining life assessment unit, and an assessment result output unit. The information acquisition unit acquires at least vehicle information of a vehicle installed with a battery and usage history information of the battery. The learned model acquisition unit acquires a learned model that is created in advance by setting at least the vehicle information of the vehicle and the usage history information of the battery as explanatory variables, and the remaining life of the battery as a target variable. The remaining life assessment unit assesses the remaining life of the battery based on the vehicle information and the usage history information acquired by the information acquisition unit and the learned model. The assessment result output unit outputs the assessment result of the remaining life assessment unit.
    Type: Application
    Filed: November 8, 2024
    Publication date: February 27, 2025
    Inventors: Tomomi ASAI, Yoshikazu KUSANO, Nobuo YAMAMOTO, Shogo SUZUKI, Hiroyasu SUZUKI, Keisuke GOTO
  • Patent number: 12025676
    Abstract: A degradation degree assessment device for a secondary battery is to assess a degree of degradation of a secondary battery and includes a battery characteristic acquisition unit, a capacity estimation unit, and an assessment unit. The battery characteristic acquisition unit acquires a battery characteristic relating to a voltage transition of the secondary battery in a predetermined voltage section. The assessment unit assesses the degree of degradation of the secondary battery based on the battery characteristic acquired by the battery characteristic acquisition unit or based on a battery characteristic-related value computed on the basis of the battery characteristic.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: July 2, 2024
    Assignee: DENSO CORPORATION
    Inventors: Tomomi Asai, Nobuo Yamamoto, Hiroyasu Suzuki, Katsuki Hayashi, Yuya Minabe
  • Publication number: 20230122626
    Abstract: A server for a deterioration degree determination system for a secondary battery includes an estimation formula memory unit and an update unit. The estimation formula memory unit stores an estimation formula for determining a deterioration degree based on a battery characteristic related to transition of a battery state over a predetermined voltage section in the secondary battery or a battery characteristic relationship value related to the battery characteristic. The update unit that updates the estimation formula stored in the estimation formula memory unit based on the battery characteristic related to the transition of the battery state of the secondary battery acquired by charging and discharging the secondary battery in an external terminal.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: Tomomi ASAI, Nobuo Yamamoto, Hiroyasu Suzuki, Katsuki Hayashi, Yuya Minabe
  • Publication number: 20230118313
    Abstract: In a deterioration degree determination device for a secondary battery, a battery information acquisition unit acquires battery information related to the secondary battery, and a feasibility determination unit determines feasibility of determination of deterioration degree for each secondary battery based on the battery information and a feasibility determination reference prepared in advance. A battery characteristic acquisition unit acquires a battery characteristic related to transition of a battery state in a predetermined voltage section for the secondary battery for which the determination of the deterioration degree is determined to be feasible by the feasibility determination unit.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: Tomomi ASAI, Nobuo Yamamoto, Hiroyasu Suzuki, Katsuki Hayashi, Yuya Minabe
  • Publication number: 20230118311
    Abstract: A deterioration degree determination device includes a charging and discharging control unit, a battery characteristic acquisition unit, and a determination unit. The charging and discharging control unit, in a state where multiple secondary batteries are connected to each other to form a battery pack, performs a charging and discharging operation of the battery pack while voltages of the secondary batteries are individually measured. The battery characteristic acquisition unit acquires a battery characteristic related to transition in a battery state over a predetermined voltage section for at least some of the multiple secondary batteries. The determination unit determines a deterioration degree of at least some of the multiple secondary batteries based on the battery characteristic or a battery characteristic relationship value calculated based on the battery characteristic.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: Tomomi ASAI, Nobuo YAMAMOTO, Hiroyasu SUZUKI, Katsuki HAYASHI, Yuya MINABE
  • Publication number: 20220146590
    Abstract: A degradation degree assessment device for a secondary battery is to assess a degree of degradation of a secondary battery and includes a battery characteristic acquisition unit, a capacity estimation unit, and an assessment unit. The battery characteristic acquisition unit acquires a battery characteristic relating to a voltage transition of the secondary battery in a predetermined voltage section. The assessment unit assesses the degree of degradation of the secondary battery based on the battery characteristic acquired by the battery characteristic acquisition unit or based on a battery characteristic-related value computed on the basis of the battery characteristic.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: DENSO CORPORATION
    Inventors: Tomomi ASAI, Nobuo YAMAMOTO, Hiroyasu SUZUKI, Katsuki HAYASHI, Yuya MINABE
  • Patent number: 8383797
    Abstract: The present invention provides a gene construct encoding pH insensitive luciferase for visualizing intracellular information, wherein an intracellular expression activity is higher compared with a gene construct of luciferase derived from a firefly.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 26, 2013
    Assignees: Toyo Boseki Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Yoshihiro Ohmiya, Yoshihiro Nakajima, Vadim Viviani, Shigeaki Nishii, Tomomi Asai
  • Publication number: 20100112553
    Abstract: The present invention provides a gene construct encoding pH insensitive luciferase for visualizing intracellular information, wherein an intracellular expression activity is higher compared with a gene construct of luciferase derived from a firefly.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 6, 2010
    Applicants: Toyo Boseki Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Yoshihiro OHMIYA, Yoshihiro NAKAJIMA, Vadim VIVIANI, Shigeaki NISHII, Tomomi ASAI
  • Publication number: 20090220960
    Abstract: The present invention provides a gene construct encoding pH insensitive luciferase for visualizing intracellular information, wherein an intracellular expression activity is higher compared with a gene construct of luciferase derived from a firefly.
    Type: Application
    Filed: November 13, 2006
    Publication date: September 3, 2009
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Yoshihiro Ohmiya, Yoshihiro Nakajima, Vadim Viviani, Shigeaki Nishii, Tomomi Asai