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:
Oct. 29, 2002
Filed:
Jan. 18, 2000
Applicant:
Inventor:
Yoshio Hanato, Sabao, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 2/729 ;
U.S. Cl.
CPC ...
H01F 2/729 ;
Abstract
A wire-wound common-mode choke coil includes a core member provided with a winding core, flanges disposed at both ends of the winding core, and legs for supporting the core member having grooves defined therein, the grooves being provided in each of the flanges. Bottom edges of the grooves are elevated from the periphery of the winding core by about 1.0 to about 1.5 times the diameter of a wire used to define windings provided on the winding core and protrusions are provided at both ends of the winding core. The flank of the protrusions gradually increase in height as they extend toward the flanges.