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. 03, 2018
Filed:
Jan. 24, 2017
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventor:
Mitsutoshi Imamura, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/09 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H03H 1/00 (2006.01); H03H 7/01 (2006.01); H01F 17/00 (2006.01); H01G 4/12 (2006.01); H01G 4/228 (2006.01); H01G 4/30 (2006.01); H01G 4/40 (2006.01); H01G 4/012 (2006.01);
U.S. Cl.
CPC ...
H03H 7/09 (2013.01); H01F 17/0013 (2013.01); H01F 27/2804 (2013.01); H01F 27/29 (2013.01); H01G 4/12 (2013.01); H01G 4/228 (2013.01); H03H 1/00 (2013.01); H03H 7/0115 (2013.01); H01F 2017/0026 (2013.01); H01F 2027/2809 (2013.01); H01G 4/012 (2013.01); H01G 4/30 (2013.01); H01G 4/40 (2013.01); H03H 2001/0085 (2013.01);
Abstract
In a laminated LC filter, at least four LC parallel resonators are provided inside a multilayer body. At least a pair of loops of inductors in odd numbered-stage LC parallel resonators among the at least four LC parallel resonators are disposed at an angle at which magnetic coupling is obtained therebetween, and winding directions thereof are the same, so as to obtain magnetic coupling between the inductors. In addition, magnetic coupling may also be obtained between a pair of loops of inductors in even numbered-staged LC parallel resonators among the at least four LC parallel resonators.