US Patent Issued to Eco Technology on April 15 for "Rotary blade, rotating device, and power generation device" (Japanese Inventor)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,259, issued on April 15, was assigned to Eco Technology Co. Ltd. (Japan).

"Rotary blade, rotating device, and power generation device" was invented by Masaharu Kato (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wind power generation device includes rotary blades that each includes a front blade surface parallel to the rotation axis and curved to protrude frontward, and a rear blade surface, being parallel to the rotation axis, curved so as to be concave frontward, and having a smaller curve depth than the front blade surface. The front blade surface includes a first curved surface far from the rotation axis and formed frontward from...