Patents by Inventor Ken KAKU

Ken KAKU 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).

  • Electronic device, battery life judgment method, and battery life judgment program
    Patent number: 11041910
    Abstract: An electronic device includes a battery for supplying electrical power for operation of the electronic device, an acquisition unit configured to connect to a measuring instrument and acquire measurement data from the measuring instrument, a temperature sensor configured to measure a reference temperature, and a controller configured to correct the measurement data on the basis of the reference temperature. The controller acquires the terminal voltage of the battery and sets a lifespan voltage on the basis of the reference temperature. The lifespan voltage is used as a standard for outputting an alarm encouraging replacement of the battery before the terminal voltage of the battery falls below the voltage necessary for the electronic device to operate. The controller outputs the alarm when the terminal voltage is less than the lifespan voltage.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 22, 2021
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Masayuki Uchida, Ken Kaku
  • ELECTRONIC DEVICE, BATTERY LIFE JUDGMENT METHOD, AND BATTERY LIFE JUDGMENT PROGRAM
    Publication number: 20190302188
    Abstract: An electronic device includes a battery for supplying electrical power for operation of the electronic device, an acquisition unit configured to connect to a measuring instrument and acquire measurement data from the measuring instrument, a temperature sensor configured to measure a reference temperature, and a controller configured to correct the measurement data on the basis of the reference temperature. The controller acquires the terminal voltage of the battery and sets a lifespan voltage on the basis of the reference temperature. The lifespan voltage is used as a standard for outputting an alarm encouraging replacement of the battery before the terminal voltage of the battery falls below the voltage necessary for the electronic device to operate. The controller outputs the alarm when the terminal voltage is less than the lifespan voltage.
    Type: Application
    Filed: March 11, 2019
    Publication date: October 3, 2019
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Masayuki UCHIDA, Ken KAKU