ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,491, issued on Dec. 16, was assigned to MITSUBA Corp. (Gunma, Japan).
"Method for manufacturing stator core" was invented by Yasushi Yoshida (Gunma, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for manufacturing a stator core including multiple teeth around which a coil is to be wound, a teeth-connecting part that connects adjacent ones of the teeth, and a first annular part having, on an inner circumferential part thereof, multiple fitting parts to be respectively fitted with the teeth. The manufacturing method includes: (a) a step for punching out, from a sheet material, an inner core (second annular part) in which th...