ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,447, issued on Jan. 20, was assigned to MIKUNI Corp. (Tokyo).
"Permanent magnet embedded motor and pump device" was invented by Kazuya Yonemura (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A permanent magnet embedded motor includes: a stator, including a stator core and a coil for excitation, the stator core being formed in an annular shape by laminating a plurality of steel plates obtained by punching a rolled steel plate material; a rotor, arranged inside the stator and including a permanent magnet; and a housing, made of metal and including a fitting recess of a cylindrical shape centered on a predetermined axis for fitting the...