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:
Jun. 25, 2013
Filed:
Apr. 30, 2010
Applicants:
Keiichi Hatano, Takasaki, JP;
Yutaka Doshida, Takasaki, JP;
Inventors:
Keiichi Hatano, Takasaki, JP;
Yutaka Doshida, Takasaki, JP;
Assignee:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a piezoelectric ceramic which is characterized by containing [KNa]Li[NbTaSb]O(wherein x, y, z and w each represents a molar ratio and satisfies 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦w≦1) as the main phase and KNbOSiOas a sub-phase, while containing, as an additive, a Cu compound in an amount of 0.02-5.0 mol in terms of CuO relative to 100 mol of the main phase.