ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,348, issued on May 19, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Centrifugal blower, and indoor unit" was invented by Junya Hara (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A centrifugal blower includes: a drive portion having a rotary shaft that rotates about a rotation axis; and an impeller configured to be rotated forward in a rotation direction around the rotation axis by the drive portion, in which the impeller includes a main plate, a shroud facing the main plate in the axial direction, and a plurality of vane portions connecting the main plate and the shroud, the main plate has a hub that covers the drive portion and has a ...