The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 2019
Filed:
Mar. 01, 2017
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Syun Ashizawa, Minato-ku, JP;
Toshio Tomonari, Minato-ku, JP;
Hirohumi Asou, Minato-ku, JP;
Emi Ito, Tsuruoka, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 17/04 (2006.01); H01F 27/30 (2006.01); H01F 27/29 (2006.01); H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2823 (2013.01); H01F 27/29 (2013.01);
Abstract
A coil device includes a winding core with a coil portion wound by a wire and a pair of flanges respectively formed on both sides of the winding core in an axial direction. The coil portion includes a bank winding portion with double layer constituted by the wire wound around an outer circumference of the winding core and a layer winding portion with single layer constituted by the wire wound closely and adjacently to the bank winding portion along the axial direction of the winding core.