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. 22, 1988
Filed:
Oct. 27, 1986
Applicant:
Inventors:
Hideyuki Shinonaga, Saitama, JP;
Yasuhiko Ito, Tokyo, JP;
Assignee:
Kokusai Denshin Denwa Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
3103 / ; 333194 ;
Abstract
An acoustic surface wave filter bank consisting of a single or a plurality of piezoelectric substrates on which a plurality of acoustic surface wave filters each comprising an input interdigital transducer and an output interdigital transducer are fabricated, wherein center frequencies of adjacently located filters are not adjacent to center frequency of present filter so that leaked acoustic surface waves to the present filter from adjacently located filters are strongly attenuated.
Shinonaga, Hideyuki. (1988). Acoustic surface wave filter bank (U.S. Patent No. 4733122). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4733122
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile