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:
Oct. 17, 2017
Filed:
Mar. 21, 2016
Applicant:
Tdk Corporation, Minato-ku, Tokyo, JP;
Inventors:
Masaaki Iwakura, Tokyo, JP;
Katsuhiro Ishigaki, Tokyo, JP;
Hiroshi Maeda, Tokyo, JP;
Satoshi Shinbo, Tokyo, JP;
Nobuo Kitajima, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01); H01F 27/30 (2006.01); H01F 27/32 (2006.01); H01F 5/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/325 (2013.01); H01F 5/02 (2013.01); H01F 27/2823 (2013.01); H01F 2005/022 (2013.01);
Abstract
A coil device includes a bobbin, a first winding part, and a second winding part. A partition portion is formed on an outer peripheral surface of the bobbin. The first winding part is wound around the outer peripheral surface at one side of the partition portion. The second winding part is wound around the outer peripheral surface at the other side of the partition portion and has an inner winding layer and an outer winding layer located farther to the outer peripheral surface at the other side than the inner winding layer.