Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Patent Inventor Names
George David Goodman0
Voldi E. Maki, Jr.0
Date of Patent
January 31, 2017
0Patent Application Number
147138220
Date Filed
May 15, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A piezoelectric transducer is mounted in a housing. An impedance matching layer is provided between the piezoelectric transducer and the housing. The impedance matching layer includes high-permittivity regions that have a first permittivity, and low-permittivity regions that separate the high-permittivity regions and have a second permittivity. The second permittivity is lower than the first permittivity.
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