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. 25, 1994
Filed:
May. 05, 1992
Kazuyoshi Sugai, Tokyo, JP;
Clarion Co., Ltd., Tokyo, JP;
Abstract
A GaAs piezoelectric semiconductor thin film in the form of an epitaxial film is provided on a Si substrate 1, and an input transducer 3 and an output transducer 4 for input and output of a surface acoustic wave are provided on the film. A surface acoustic wave element, thus arranged, has a sound characteristic superior to that of a single crystalline GaAs substrate and permits the use of an electromechanical coupling coefficient larger than that of the single crystalline GaAs. Thus the element copes with a much higher sound velocity of SAWs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile