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:
Nov. 24, 2015
Filed:
May. 28, 2012
Takayuki Watanabe, Yokohama, JP;
Shunsuke Murakami, Kawasaki, JP;
Nobuhiro Kumada, Kofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
University of Yamanashi, Kofu-shi, JP;
Abstract
Provided is an oriented piezoelectric ceramic of satisfactory piezoelectricity, which includes a metal oxide represented by (1−x)NaNbO-xBaTiO. Also provided are a piezoelectric element using the oriented piezoelectric ceramic which includes the metal oxide represented by (1−x)NaNbO-xBaTiO, and a liquid discharge head, an ultrasonic motor, and a dust removing device which use the piezoelectric element. An oriented piezoelectric ceramic includes as a main component a metal oxide represented by the following general formula (1), in which the oriented piezoelectric ceramic has a lead content and a potassium content that are each 1,000 ppm or less: (1−x)NaNbO-xBaTiO. . . General formula (1), where a relationship of 0<x<0.3 is satisfied.