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:
Feb. 15, 2011
Filed:
May. 12, 2010
Mitsuru Ueda, Shiga-ken, JP;
Masaharu Konoue, Tokyo-to, JP;
Hiroki Hashimoto, Shiga-ken, JP;
Tatsuya Mizuno, Shiga-ken, JP;
Mitsuru Ueda, Shiga-ken, JP;
Masaharu Konoue, Tokyo-to, JP;
Hiroki Hashimoto, Shiga-ken, JP;
Tatsuya Mizuno, Shiga-ken, JP;
Abstract
A multilayer coil component is provided in which solder fusibility and a self-alignment property are prevented from being degraded due to absorption of a flux in a soldering step. The multilayer coil component has no voids present at interfaces between internal conductorsand a magnetic ceramiclocated therearound. A magnetic ceramic forming a central regionhas a region (side gap portion) which extends from a side surfaceof the magnetic ceramic element to the internal conductors and which has a pore area ratio of 6% to 20%. At least one of a first external layer region, located at an upper side of the central region, and a second external layer region, located at a lower side of the central region (an external layer region at a mounting surface side of a mounting substrate), has a pore area ratio of less than 5%.