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:
Mar. 02, 1993
Filed:
Jan. 14, 1991
Applicant:
Inventors:
Makoto Tsutsumi, Hirakata, JP;
Toshio Nishikawa, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335304 ; 333202 ; 333204 ; 333219 ;
Abstract
This magnetostatic wave device includes a ferrimagnetic substrate like, for example, a YIG thin film. On this ferrimagnetic substrate a strip line is formed. One end of the strip line is connected to an input terminal and the other end is connented to an output terminal. A magnetic field is applied to the ferrimagnetic substrate by a magnet. In this case, the ferrimagnetic substrate is so disposed that a direction parallel to its principal plane and a direction perpendicular to its principal plane are not parallel to the direction of a line of magnetic force of the magnet.