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. 04, 2003
Filed:
Aug. 20, 2001
Ryosuke Tanimoto, Omihachiman, JP;
Yoichi Tsuji, Yokaichi, JP;
Masanori Kimura, Omihachiman, JP;
Hitoshi Takagi, Omihachiman, JP;
Abstract
A piezoelectric ceramic composition and a piezoelectric element in which cracks and chips are not likely to occur during working even if the thicknesses are reduced, are provided. The piezoelectric ceramic composition contains as a primary component, a complex oxide having a perovskite structure, composed of at least Pb, Zr, Ti, Mn, Nb and O, and represented by general formula ABO , in which the total molar quantity of elements constituting A is smaller than the total molar quantity of elements constituting B, and Si is present as a secondary component at the content of about 0.010 wt % to 0.090 wt %, in terms of SiO , relative to the primary component.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile