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. 08, 2014
Filed:
Mar. 14, 2012
Applicants:
Masao Nakayama, Nagano, JP;
Noboru Furuya, Nagano, JP;
Inventors:
Masao Nakayama, Nagano, JP;
Noboru Furuya, Nagano, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric element including: a first electrode, a piezoelectric layer formed above the first electrode to have a longitudinal direction and a transverse direction, and a second electrode formed above the piezoelectric layer, wherein at least a part of a side surface of the piezoelectric layer in the transverse direction is a concavo-convex surface, and a width of the piezoelectric layer in the transverse direction from the second electrode to the first electrode changes with the concavo-convex surface.