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:
Jul. 15, 2014
Filed:
Jul. 06, 2012
Applicants:
Katsumi Kobayashi, Tokyo, JP;
Hiroshi Maeda, Tokyo, JP;
Kiho Hwang, Seoul, KR;
Inventors:
Assignees:
TDK Corporation, Tokyo, JP;
TDK Korea Corporation, Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/30 (2006.01); H01F 27/29 (2006.01); H01F 27/24 (2006.01); H01F 27/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/027 (2013.01);
Abstract
A coil devicecomprises a bobbinhaving a bobbin plateprovided with a first hollow cylinderon which a primary coilis wound, and a caseprovided with a second hollow cylinderwound by a secondary coilat the outer circumference. On the bobbin plate, a primary terminalconnecting to the primary coiland a secondary terminalconnecting to the secondary coilare formed, and a tip end portionof caseis extended to the end portion of the bobbin plateto which the secondary terminalis formed. Further, on the tip end portion, plural first groovesfor lead are formed.