ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,155, issued on June 3, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Drive system for dump truck" was invented by Satoru Kaneko (Tokyo), Kazuo Nishihama (Tokyo), Masatoshi Yoshimura (Tokyo), Kosuke Matsuo (Tokyo), Seiji Ishida (Tsuchiura, Japan), Toshihiko Watanabe (Tsuchiura, Japan) and Tokuma Ikegami (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present invention is to provide a drive system for a dump truck capable of suppressing increase in size of a converter that controls a two-winding induction generator. To this end, the drive system for a dump truck includes a DC-DC converter connected ...