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:
Jun. 06, 2017
Filed:
Dec. 31, 2012
Applicant:
Microfine Materials Technologies Pty Ltd, Singapore, SG;
Inventors:
Assignee:
MICROFINE MATERIALS TECHNOLOGIES PTY LTD, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01); B81B 3/00 (2006.01); H01L 41/18 (2006.01); H01L 41/25 (2013.01); H01L 41/293 (2013.01);
U.S. Cl.
CPC ...
H01L 41/09 (2013.01); B81B 3/00 (2013.01); H01L 41/0926 (2013.01); H01L 41/0966 (2013.01); H01L 41/0986 (2013.01); H01L 41/18 (2013.01); H01L 41/25 (2013.01); H01L 41/293 (2013.01);
Abstract
This invention pertains to piezoelectric actuators made of single crystal active elements which not only exhibit uniform and superior displacement in the axial direction but also of lower cost to produce than full single crystal ring or tube actuators. Said multi-stake actuator is made up of multiple longitudinal (d33) or transverse (d3i or d32) mode piezoelectric single crystal active elements, bonded together by epoxy with the aid of shaped edge- and top and bottom washer-stiffeners which are configured to suit various application needs.