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:
Nov. 16, 2010
Filed:
Feb. 05, 2010
Applicants:
Takaya Wada, Otsu, JP;
Hiroaki Kikuta, Moriyama, JP;
Inventors:
Takaya Wada, Otsu, JP;
Hiroaki Kikuta, Moriyama, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nonreciprocal circuit device (2-port isolator) includes a ferrite-magnet assembly including a ferrite, a first center electrode, and a second center electrode. The ferrite is sandwiched between a pair of permanent magnets and receives a direct-current magnetic field applied thereto. The first and second center electrodes are arranged on the ferrite. The ferrite includes a center layer and an outer layer ensuring an insulation state of the first and second center electrodes. The saturation magnetization of the outer layer is smaller than that of the center layer.