ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,623, issued on Sept. 23, was assigned to YANMAR HOLDINGS Co. LTD. (Osaka, Japan).
"Energy storage device and work machine" was invented by Takeshi Ouchida (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary energy storage device is an energy storage device capable of storing energy, which includes a flywheel driven by a motor to store and release rotation energy and a hydraulic element disposed between the motor and the flywheel to change the rotation speed of the flywheel."
The patent was filed on March 15, 2024, under Application No. 18/607,371.
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