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:
Feb. 02, 2021
Filed:
Aug. 07, 2014
Applicant:
Pi Ceramic Gmbh, Lederhose, DE;
Inventors:
Eberhard Hennig, Mörsdorf, DE;
Antje Kynast, Leipzig, DE;
Michael Töpfer, Arnstadt, DE;
Michael Hofmann, Neustade an der Orla, DE;
Assignee:
PI CERAMIC GMBH, Lederhose, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01); H01L 41/18 (2006.01); C04B 35/495 (2006.01); C04B 35/626 (2006.01); H01L 41/43 (2013.01);
U.S. Cl.
CPC ...
H01L 41/1873 (2013.01); C04B 35/495 (2013.01); C04B 35/62655 (2013.01); C04B 35/62695 (2013.01); H01L 41/43 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3203 (2013.01); C04B 2235/3251 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3291 (2013.01); C04B 2235/3294 (2013.01); C04B 2235/3296 (2013.01); C04B 2235/72 (2013.01); C04B 2235/725 (2013.01); C04B 2235/768 (2013.01); C04B 2235/79 (2013.01);
Abstract
The invention relates to a piezoceramic material with reduced lead content, based on potassium sodium niobate (PSN) and having a defined parent composition. According to the invention the manner of addition of a mixture of Pb, Nb and optionally Ag and optionally Mn gives a wide sintering range together with reproducible electrical and mechanical properties of the material.