ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,593, issued on June 17, was assigned to Canon K.K. (Tokyo).

"Fixing unit and image forming apparatus" was invented by Takaomi Uezono (Shizuoka, Japan), Minoru Hayasaki (Shizuoka, Japan) and Takaaki Tsuruya (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fixing unit includes a rotary member that includes a conductive layer, a magnetic core inserted in an interior space of the rotary member, and an energizing coil that includes a conductor and that is wound helically around a circumference of the magnetic core. In a case where a distance between a first cross section of the conductor in a plane along the longitudinal direction and a ...