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:
May. 11, 2004
Filed:
Nov. 16, 2001
Applicant:
Inventors:
Kazuyuki Okita, Sendai, JP;
Toru Ito, Miyagi, JP;
Toshiya Sato, Sendai, JP;
Teruhiko Fujiwara, Sendai, JP;
Assignee:
NEC Tokin Corporation, Sendai, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 7/08 ; H01F 2/100 ;
U.S. Cl.
CPC ...
H01F 7/08 ; H01F 2/100 ;
Abstract
An inductor component is provided which includes a magnetic core having at least one gap, an excitation coil disposed on the magnetic core so as to form a magnetic path on the magnetic core, at least one permanent magnet disposed near the at least one gap, and at least one first soft magnetic material piece disposed between the at least one permanent magnet and the magnetic core, wherein the first soft magnetic material piece is formed of a soft magnetic material which has a smaller permeability and less eddy current loss than the magnetic core.