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:
Dec. 24, 1991
Filed:
Jun. 22, 1989
Applicant:
Inventor:
Kazuyoshi Sugai, Tokyo, JP;
Assignee:
Clarion Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
333193 ; 3103 / ; 3103 / ; 333196 ;
Abstract
In a wide band surface acoustic wave filter having a multilayered structure, in which an elastic substrate and a piezoelectric thin film are combined, transducers are so constructed that the period of electrodes thereof varies in the direction perpendicular to the propagation direction of the surface acoustic wave.
Sugai, Kazuyoshi. (1991). Wide band surface acoustic wave filter having constant thickness (U.S. Patent No. 5075652). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5075652
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile