ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,265, issued on April 15, was assigned to NTN Corp. (Osaka, Japan).
"Windmill and wind power generation apparatus" was invented by Takeru Ito (Kuwana, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A windmill includes a shaft, a blade, and a supporting member. The windmill is rotatable about a center axis of the shaft. The blade has a blade main body portion extending along an axial direction that is a direction of the center axis. When viewed in a cross sectional view orthogonal to the axial direction, the blade main body portion includes a front edge and a rear edge, the front edge being an end on a front side in a rotation direction of the wi...