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:
Aug. 13, 1985
Filed:
May. 17, 1984
Toshikazu Kodama, Yokohama, JP;
Koji Sato, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A surface acoustic wave transducer comprises a piezoelectric substrate, a first comb-shaped electrode with strips having the same width of .lambda./8 (.lambda. is the wavelength of a surface acoustic wave), and a second comb-shaped electrode with strips having the same width of .lambda./8. The strips of these comb-shaped electrodes are spaced apart from each other for a distance of .lambda./8. The strips of either electrode form pairs. Of each pair of strips, one strip has a narrow portion having a width of .lambda./16 and the other strip has a broad portion having a width of 3.lambda./16, which extends along the narrow portion. The narrow and broad portions of the strips of either comb-shaped electrode both acoustically and electrically reflect surface acoustic waves, whereas the other portions of the strips only electrically reflect the waves.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile