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:
Jul. 02, 1991
Filed:
Jul. 14, 1989
Applicant:
Inventors:
Kazuyoshi Sugai, Tokyo, JP;
Osamu Noguchi, Tokyo, JP;
Assignee:
Clarion Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
333193 ; 3103 / ; 333195 ;
Abstract
A SAW device uses an input and output transducers having different electrode periods, and includes diode arrays provided in a semiconductor layer under a gate electrode between both transducers, so that the device has an excellent efficiency as a notch filter.
Sugai, Kazuyoshi. (1991). Surface-acoustic-wave device and notch filter device having a plurality (U.S. Patent No. 5028101). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5028101
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile