US Patent Issued to CANON on April 21 for "Electromagnetic device, alignment apparatus, and article manufacturing method" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,228, issued on April 21, was assigned to CANON K.K. (Tokyo).

"Electromagnetic device, alignment apparatus, and article manufacturing method" was invented by Takeshi Sato (Tochigi, Japan), Shigeo Koya (Tochigi, Japan) and Nobushige Korenaga (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic device includes a first member having a first end face, a second member having a second end face facing the first end face through an air gap, and a coil wound around one of the first member and the second member. Each of the first member and the second member is formed from a laminated body of a plurality of steel plates, and a mag...