US Patent Issued to SUMITOMO HEAVY INDUSTRIES on July 21 for "Magnetic modulation gear and gear motor" (Japanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,252, issued on July 21, was assigned to SUMITOMO HEAVY INDUSTRIES LTD. (Tokyo).

"Magnetic modulation gear and gear motor" was invented by Hiroki Nakagawa (Kanagawa, Japan), Taizo Yamamoto (Kanagawa, Japan) and Takahiro Minari (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic modulation gear includes a plurality of outer pole magnets arranged in a circumferential direction, a rotor that includes a plurality of magnetic pole pieces arranged in the circumferential direction on a radially inner side with respect to the outer pole magnets, a plurality of inner pole magnets arranged in the circumferential direction on a radially i...