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:
Jan. 14, 1986
Filed:
Aug. 29, 1984
Applicant:
Inventor:
Toshio Ogawa, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310359 ; 310358 ;
Abstract
A ceramic filter including a piezoelectric ceramic and input and output electrode groups disposed within the ceramic body. The input electrode group and the output electrode group extend toward each other from opposing sides of the piezoelectric ceramic. They do not meet, however, and a predetermined spacing, along the thickness dimension of the ceramic, separates the two electrode groups. The input and output electrode groups are each composed of a plurality of electrodes which overlap each other with ceramic layers interposed therebetween.