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:
Apr. 05, 2011
Filed:
Oct. 26, 2006
Katsutoshi Nakagawa, Yokohama, JP;
Tetsuo Inoue, Yokohama, JP;
Akira Sato, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama-Shi, JP;
Abstract
A planar magnetic deviceincludes a first magnetic layerand a second magnetic layerthat are made of a mixture of a magnetic powderand a resin, and a planar coildisposed between the magnetic layers. When the planar coilhas an adjacent winding interval W between the potionsof the coil and the magnetic powderhas a maximum particle size L, planar magnetic devicesatisfies the relationship W>L. In the planar magnetic devicehaving the above structure, fine magnetic powder that can produce a high inductance fills the spaces between the adjacent windings. Thus, the invention can achieve a high-performance planar magnetic device, such as a thin inductor.