Invention Grant
- Patent Title: Method for manufacturing ferrite magnet device, method for manufacturing non-reciprocal circuit device, and method for manufacturing composite electronic component
- Patent Title (中): 铁氧体磁铁装置的制造方法，不可逆电路装置的制造方法以及复合电子部件的制造方法
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Application No.: US12401655Application Date: 2009-03-11
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Publication No.: US08347482B2Publication Date: 2013-01-08
- Inventor: Takashi Hasegawa
- Applicant: Takashi Hasegawa
- Applicant Address: JP Nagaokakyo-Shi, Kyoto-fu
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Nagaokakyo-Shi, Kyoto-fu
- Agency: Dickstein Shapiro LLP
- Priority: JP2008-101672 20080409
- Main IPC: G01R31/28
- IPC: G01R31/28
Abstract:
A method for manufacturing a ferrite magnet device including a ferrite body and first and second center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet arranged to apply a direct current magnetic field to the ferrite body and a method for manufacturing an isolator or a composite electronic component, which include the ferrite magnet device. A magnetic force of the permanent magnet is adjusted using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body.
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