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:
Jul. 22, 2003
Filed:
May. 25, 2001
Applicant:
Inventor:
Toshihito Umegaki, Ishikawa-ken, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/383 ; H01P 1/36 ;
U.S. Cl.
CPC ...
H01P 1/383 ; H01P 1/36 ;
Abstract
A nonreciprocal circuit device includes a metal lower case made of magnetic metal, a resin terminal case, a central electrode assembly, a metal upper case made of magnetic metal, a permanent magnet, and an electric-circuit-component assembly. The electric-circuit-component assembly is disposed on a side of the permanent magnet, and is formed such that a coil and a capacitor are mounted on a substrate. The electric-circuit-component assembly is disposed in parallel to the thickness direction of the permanent magnet so as to be below the surface of the permanent magnet, and has a portion overlapping with the permanent magnet.