{
  "patent_number": "US 20240186800",
  "country": "US",
  "title": "How a System Tracks and Transfers Rechargeable Batteries Between Users",
  "original_title": "Battery management system, battery management method, and program",
  "summary": "This patent describes a system that verifies a rechargeable battery's actual capacity and then updates which user is associated with that specific battery, especially useful for shared or transferable batteries.",
  "what_it_does": "The system starts with a 'battery status acquisition unit' that collects unique identification data for a rechargeable battery and its electrical characteristics, like voltage or internal resistance, while it's connected, charging, or discharging (Claim 1, Claim 5). Next, a 'battery capacity authentication unit' calculates the battery's true usable capacity based on these electrical characteristics and confirms it as an 'authentication capacity' (Claim 1). This authenticated capacity, along with the battery's ID, is stored in a 'battery management database' on a central server. Separately, a 'user management database' links user information to specific battery IDs. Crucially, a 'user data modification unit' can change which user is linked to a battery's ID, potentially based on the authenticated capacity (Claim 2) or even an offer from another user to acquire that battery (Claim 4). For example, if you return a rental power bank, the system could authenticate its remaining capacity and then reassign it to the next user who rents it, ensuring its health is known.",
  "what_it_does_not_cover": [
    "Does not cover a simple battery charging system that doesn't authenticate the battery's actual chargeable capacity.",
    "Does not cover a system that tracks battery usage but does not allow modification of the association between a user and a specific battery.",
    "Does not cover a system where the authenticated capacity isn't derived from the battery's electrical characteristics, such as voltage or resistance.",
    "Does not cover a system that manages batteries without a central management server and associated databases for battery and user data.",
    "Does not cover systems that only monitor battery health without enabling the transfer or re-assignment of the battery to a different user based on its authenticated capacity."
  ],
  "filed": "2022-03-29",
  "granted": null,
  "expires": "2042-03-29",
  "status": "active",
  "holder": "Mirai Labo Co",
  "holder_url": "https://patentbrief.org/company/mirai-labo-co",
  "inventors": [
    {
      "name": "Toshio Hiratsuka",
      "url": "https://patentbrief.org/inventor/toshio-hiratsuka"
    }
  ],
  "times_cited": 2,
  "tags": [
    "consumer_electronics",
    "software",
    "telecommunications",
    "energy"
  ],
  "abstract": "A battery management system includes a battery status acquisition unit for acquiring, as secondary battery data, identification data that specifies and identifies the secondary battery and electrical characteristic data that indicates electrical characteristics of the secondary battery when connected, when charging or when discharging, a battery capacity authentication unit for calculating a chargeable capacity of the secondary battery based on the electrical characteristic data and authenticating the chargeable capacity as an authentication capacity and, a battery management database unit provided in the management server for recording the identification data in association with the authentication capacity, a user management database for recording user data related to a user of the secondary battery in association with the identification data, and a user data modification unit for modifying the association between the user data and the identification data.",
  "url": "https://patentbrief.org/patent/us/20240186800/battery-management-system-battery-management-method-and-program",
  "markdown_url": "https://patentbrief.org/patent/us/20240186800/battery-management-system-battery-management-method-and-program/md",
  "google_patents_url": "https://patents.google.com/patent/US20240186800",
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}