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:
Sep. 27, 2005
Filed:
Nov. 12, 2004
Kan Sano, Katsushika-Ku, JP;
Kan Sano, Katsushika-Ku, JP;
Sumida Corporation, Tokyo, JP;
Sumida Electric Co., Ltd., Tokyo, JP;
Abstract
An inductance element having a drum core around which a winding is to be wound and a ring core surrounding a circumference of the drum core, in which projections are provided either on an outer side surface of an upper flange section of the drum core or an inner side surface of the ring core, and recessions are provided in the other side surface to fit with the projections, each of the recession having an inclined plane inclining from the deepest part of the recession toward the outer edge on one side of the recession and having a bilaterally asymmetric cross-sectional shape with respect to a perpendicular line drawn from the deepest part to an opening of the recession viewing from the direction of an upper surface of the ring core.