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. 17, 2015
Filed:
Feb. 27, 2012
Applicants:
Takayuki Watanabe, Yokohama, JP;
Shunsuke Murakami, Kawasaki, JP;
Nobuhiro Kumada, Kofu, JP;
Inventors:
Assignees:
Canon Kabushiki Kaisha, Tokyo, JP;
University of Yamanashi, Kofu-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); H01L 41/187 (2006.01); B41J 2/14 (2006.01); C04B 35/495 (2006.01); C04B 35/626 (2006.01); H01L 41/43 (2013.01); H02N 2/00 (2006.01); H02N 2/10 (2006.01); H02N 2/16 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1871 (2013.01); B41J 2/14233 (2013.01); C04B 35/495 (2013.01); C04B 35/62685 (2013.01); H01L 41/1873 (2013.01); H01L 41/43 (2013.01); H02N 2/001 (2013.01); H02N 2/106 (2013.01); H02N 2/163 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/3267 (2013.01); C04B 2235/3281 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/768 (2013.01); C04B 2235/77 (2013.01); C04B 2235/80 (2013.01); C04B 2235/81 (2013.01); C04B 2235/96 (2013.01);
Abstract
Provided is a piezoelectric material which has satisfactory insulation property and piezoelectric property and which does not contain lead and potassium. The piezoelectric material includes a perovskite-type metal oxide that is represented by the following general formula (1):(NaBa)(NbTi)O  General formula (1)where relationships of 0.80≦x≦0.95 and 0.85≦y≦0.95 are satisfied, and y×0.05 mol % or more to y×2 mol % or less of copper with respect to 1 mol of the perovskite-type metal oxide.