ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,029, issued on May 13, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Power supply system and control device" was invented by Masahiko Mitsui (Toyota, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A control device classifies a plurality of batteries included in a battery string into a first battery (e.g., Ni-MH) and a second battery (e.g., LiB). When a predetermined first condition is satisfied, the control device connects, to a power supply circuit, only the first battery among the batteries included in the battery string. When a predetermined second condition is satisfied, the control device connects, to the power supply circuit, onl...