US Patent Issued to NIDEC on Nov. 18 for "Rotor, IPM motor including same, and rotor manufacturing method" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,502, issued on Nov. 18, was assigned to NIDEC Corp. (Kyoto, Japan).

"Rotor, IPM motor including same, and rotor manufacturing method" was invented by Yosuke Tanaka (Kyoto, Japan), Takeshi Honda (Kyoto, Japan), Hirofumi Muto (Kyoto, Japan), Hideki Tsuji (Kyoto, Japan) and Yuya Danjo (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes core plates, a hole, and a magnet in the hole. The core plates include a first core plate and a second core plate frontward of the first core plate. The first core plate includes a first hole, a first protrusion protruding inward of the first hole, and a first portion located in an opposite dire...