ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,276, issued on July 14, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Construction machine" was invented by Shinji Nishikawa (Kasumigaura, Japan), Ryohei Yamashita (Sumida-ku, Japan) and Akihiro Narazaki (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a machine controller that controls operation of the hydraulic excavator, an external operation controller that executes control of unattended operation that does not require operation through riding of an operator in a cab, by generating a control signal according to an operation signal received from the external through a communication terminal and sendi...