ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,493, issued on April 15, was assigned to YAMAHA HATSUDOKI K.K. (Shizuoka, Japan).
"Electric bicycle, battery switching device, and method of switching battery" was invented by Masanori Negoro (Shizuoka, Japan), Katsuro Shibahara (Shizuoka, Japan) and Satoshi Katayama (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control device sets a second electricity control switch in an intermediate state in a process of switching a discharge battery for supplying a drive unit with an electrical current from a first battery to a second battery. Subsequently, when a comparative relationship between an electric potential of a smoothing capacitor ...