ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,861, issued on April 8, was assigned to GS YUASA International Ltd. (Kyoto, Japan).
"Energy storage apparatus, energy storage system, internal resistance estimation method, and computer program" was invented by Shigeki Hattori (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An energy storage apparatus includes an energy storage device and a management unit. The management unit: lowers an SOC of the energy storage device by discharge of the energy storage device; acquires current and voltage of the energy storage device while the SOC of the energy storage device is within a predetermined SOC range in a process of raising the SOC of the e...