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. 27, 2001
Filed:
May. 24, 1999
Norio Taniguchi, Ishikawa-ken, JP;
Tadamasa Ushiroku, Ishikawa-ken, JP;
Abstract
A surface acoustic wave filter having a ladder type circuit configuration, includes series resonators provided as part of a series arm disposed between input and output terminals and parallel resonators included in a plurality of parallel arms, respectively, defined between the series arm and a reference potential. The series resonators and parallel resonators each include a one-port surface acoustic wave resonator, the parallel resonators are arranged alternately with the series resonators along a direction from the input terminal toward the output terminal, and the resonant frequency of at least one parallel resonator is different from the resonant frequencies of the other parallel resonators.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile