US Patent Issued to MITSUBISHI ELECTRIC on Dec. 30 for "Impeller, fan, and air-conditioning apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,095, issued on Dec. 30, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Impeller, fan, and air-conditioning apparatus" was invented by Kisho Hatakenaka (Tokyo), Tomoya Fukui (Tokyo), Kenichi Sakoda (Tokyo), Tetsuji Saikusa (Tokyo) and Yuki Nakao (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An impeller includes a blade including, at its leading edge part, a first leading-edge-side concavity, a leading-edge-side convexity, and a second leading-edge-side concavity, which are positioned in sequence from a radially middle part to an outboard edge part. The first leading-edge-side concavity is a part where the suction side of the impeller is ...