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. 06, 2009
Filed:
Sep. 28, 2007
Applicants:
Yoichiro Ito, Echi-gun, JP;
Osamu Naito, Kusatsu, JP;
Inventors:
Yoichiro Ito, Echi-gun, JP;
Osamu Naito, Kusatsu, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A layered coil component includes a coil that is constructed by layering coil conductor patterns and ceramic sheets. The ceramic sheets include a first ceramic sheet and a third ceramic sheet having a permeability lower than the permeability of the first ceramic sheet. The third ceramic sheet has an arrangement that is astride at least two of the coil conductor patterns adjacent to each other in a layering direction, in a section including a coil axis of the coil. As a result, DC bias characteristics of the open magnetic circuit type layered coil component are improved.