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:
May. 17, 1977
Filed:
Sep. 26, 1974
Toko Incorporated, Tokyo, JA;
Abstract
Ferroelectric ceramic compositions consisting essentially of quaternary solid solutions of Pb(Fe1/2.Nb1/2)O.sub.3 --Pb(Zn1/3.Nb2/3)O.sub.3 --PbZrO.sub.3 --PbTiO.sub.3, the components of which are within a defined range of relative proportions, have substantially higher insulation resistance characteristics and substantially higher electromechanical coupling coefficient characteristics than prior art compositions. Additionally, the components within a more restricted range of relative proportions have the additional characteristic of a higher Poisson's ratio than prior art compositions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile