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:
Apr. 05, 2016
Filed:
Dec. 22, 2011
Jumpei Hayashi, Chofu, JP;
Hisato Yabuta, Machida, JP;
Makoto Kubota, Yokohama, JP;
Mikio Shimada, Tokyo, JP;
Satoshi Wada, Kofu, JP;
Ichiro Fujii, Kofu, JP;
Ryuta Mitsui, Kofu, JP;
Nobuhiro Kumada, Kofu, JP;
Jumpei Hayashi, Chofu, JP;
Hisato Yabuta, Machida, JP;
Makoto Kubota, Yokohama, JP;
Mikio Shimada, Tokyo, JP;
Satoshi Wada, Kofu, JP;
Ichiro Fujii, Kofu, JP;
Ryuta Mitsui, Kofu, JP;
Nobuhiro Kumada, Kofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
University of Yamanashi, Kofu-shi, JP;
Abstract
Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO-yBiFeO-zBi(MTi)O(1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.