ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,989, issued on Aug. 12, was assigned to TDK Corp. (Tokyo).
"Magnetic sensor and manufacturing method therefor" was invented by Koji Kuroki (Tokyo) and Chengbin Lin (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor chip of a magnetic sensor includes a magnetosensitive element, ferromagnetic films forming a magnetic gap overlapping the magnetosensitive element, and a passivation film provided on the ferromagnetic films so as to be filled in the magnetic gap. The ferromagnetic films each include a lower magnetic film and an upper magnetic film. The magnetic gap is configured such that a width between the upper magnetic films is larger than...