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. 14, 2015
Filed:
Aug. 30, 2012
Makoto Kubota, Yokohama, JP;
Takayuki Watanabe, Yokohama, JP;
Hisato Yabuta, Machida, JP;
Jumpei Hayashi, Chofu, JP;
Nobuhiro Kumada, Kofu, JP;
Satoshi Wada, Kofu, JP;
Makoto Kubota, Yokohama, JP;
Takayuki Watanabe, Yokohama, JP;
Hisato Yabuta, Machida, JP;
Jumpei Hayashi, Chofu, JP;
Nobuhiro Kumada, Kofu, JP;
Satoshi Wada, Kofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
University of Yamanashi, Kofu-shi, JP;
Abstract
Provided is a piezoelectric ceramics that can achieve both high piezoelectric performance and a high Curie temperature. Also provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric ceramics. The piezoelectric ceramics include a perovskite-type metal oxide expressed by a general formula (1): xBaTiO-yBiFeO-zBi(MTi)O, where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.40≦x≦0.80, y satisfies 0≦y≦0.30, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied, and are oriented in a (111) plane in a pseudocubic expression.