Patents by Inventor Tokunori Honma

Tokunori Honma 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).

  • DC power supply system with automatic recharging for storage battery
    Patent number: 5804945
    Abstract: A storage battery-based DC power supply system with continuous float charging adapted to automatic continuous recharging of storage battery connected to load is disclosed. Selective recharging at the full-charge voltage and float charging voltage is performed in response to the accumulated ampere-hour value of discharge current from the storage battery, when such value reaches a predetermined threshold value set to prevent excessive recharging, which can damage storage battery.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: September 8, 1998
    Assignee: Furukawa Denchi Kabushiki Kaisha
    Inventors: Osamu Sato, Takahiro Akiyama, Tokunori Honma