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. 25, 2026
Filed:
Oct. 29, 2020
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, 's-Gravenhage, NL;
Paul Louis Maria Joseph Van Neer, Bergschenhoek, NL;
Arno Willem Frederik Volker, Delft, NL;
Hylke Broer Akkerman, Rosmalen, NL;
Gerwin Hermanus Gelinck, Valkenswaard, NL;
Antonius Maria Bernardus Van Mol, Veldhoven, NL;
Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO, 's-Gravenhage, NL;
Abstract
An effective bandwidth in a membrane based ultrasonic transducer is improved by a control element (C). The control element (C) is disposed on a first side () of a first membrane () of the transducer to increase or decrease a displacement amplitude of the first membrane () towards the first side () and/or the opposite, second side (). This induces a displacement asymmetry (Za< >Zb) in a motion of the first membrane () during a first vibration (V) of the first membrane () to the first side () compared to the second side (). The displacement asymmetry may result in improved bandwidth.