US Patent Issued to Hitachi Construction Machinery on Aug. 25 for "Construction machine" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,314, issued on Aug. 25, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).

"Construction machine" was invented by Atsushi Ogata (Tsuchiura, Japan) and Takafumi Arakawa (Tsuchiura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a construction machine including an electrically driven motor that serves as a power source, a heat exchanger, a fuel cell that generates power to be provided to the electrically driven motor, a cooling fan that blows cooling air to the heat exchanger, and a fan controller that controls rotation of the cooling fan. In the construction machine, a hydrogen gas detection sensor is provided in...