Patents by Inventor Naoharu Sasayama

Naoharu Sasayama 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).

  • Charge control method for alkaline storage battery and charger for alkaline storage battery
    Patent number: 10523030
    Abstract: A charge control method for an alkaline storage battery includes determining whether or not a temperature T of a battery is less than 0° C.; if the temperature T is equal to or higher than 0° C., determining whether or not the battery has been considered to be charged to a maximum capacity that can be stored in the battery; if the battery has not been considered to be charged to the maximum capacity, determining the temperature T of the battery again; if the battery has been considered to be charged to the maximum capacity, finishing the charging; if it is determined that the temperature T is less than 0° C.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: December 31, 2019
    Assignee: FDK CORPORATION
    Inventors: Natsuki Ozawa, Yoshikazu Izumi, Hiroyuki Ogino, Naoharu Sasayama, Ryou Sakiyama, Mitsuhiro Takei, Thomas A. Wadsworth
  • CHARGE CONTROL METHOD FOR ALKALINE STORAGE BATTERY AND CHARGER FOR ALKALINE STORAGE BATTERY
    Publication number: 20190222030
    Abstract: A charge control method for an alkaline storage battery includes determining whether or not a temperature T of a battery is less than 0° C.; if the temperature T is equal to or higher than 0° C., determining whether or not the battery has been considered to be charged to a maximum capacity that can be stored in the battery; if the battery has not been considered to be charged to the maximum capacity, determining the temperature T of the battery again; if the battery has been considered to be charged to the maximum capacity, finishing the charging; if it is determined that the temperature T is less than 0° C.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 18, 2019
    Inventors: Natsuki Ozawa, Yoshikazu Izumi, Hiroyuki Ogino, Naoharu Sasayama, Ryou Sakiyama, Mitsuhiro Takei, Thomas A. Wadsworth