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:
Jul. 02, 2013
Filed:
Jan. 26, 2010
Applicants:
Takao Ohnishi, Fuso-Town, JP;
Yuhji Umeda, Iwakura, JP;
Naoki Goto, Ogaki, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/04 (2006.01); H01L 41/047 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is disclosed a piezoelectric/electrostrictive element which can be used as a sensor, even if a piezoelectric/electrostrictive layer cracks. Provided is a piezoelectric/electrostrictive element comprising a substrate, a lower electrode layer secured onto the substrate, and a piezoelectric/electrostrictive layer secured onto the lower electrode layer, and the coverage of the lower electrode layer with respect to the substrate is 98% or less.