Patent Number: 7,042,319

Title: Thin film electromagnet and switching device comprising it

Abstract: The present invention provided a thin-film electromagnet including a magnetic yoke and a thin-film coil, characterized in that the magnetic yoke includes a first magnetic yoke and a second magnetic yoke making contact with the first magnetic yoke, the first magnetic yoke is located at a center of a winding of the thin-film coil, and the second magnetic yoke is arranged above or below the thin-film coil such that the second magnetic yoke faces the thin-film coil, and overlaps at least a part of the thin-film coil.

Inventors: Ishiwata; Nobuyuki (Tokyo, JP), Honjo; Hiroaki (Tokyo, JP), Toba; Tamaki (Tokyo, JP), Saito; Shinsaku (Tokyo, JP), Ohashi; Keishi (Tokyo, JP)

Assignee: Denso Corporation

International Classification: H01H 51/22 (20060101)

Expiration Date: 5/09/02018