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:
Mar. 04, 2014
Filed:
Apr. 20, 2010
Takanori Matsuda, Chofu, JP;
Takayuki Watanabe, Kawasaki, JP;
Hiroshi Saito, Yokohama, JP;
Nobuhiro Kumada, Kofu, JP;
Takanori Matsuda, Chofu, JP;
Takayuki Watanabe, Kawasaki, JP;
Hiroshi Saito, Yokohama, JP;
Nobuhiro Kumada, Kofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
University of Yamanashi, Kofu-shi, JP;
Abstract
Provided is an oriented piezoelectric material with satisfactory sintering property free of Pb that is a hazardous substance, and a water-soluble alkaline ion, and a production method therefor. To this end, provided is a compound, including a tungsten bronze structure metal oxide, in which: the tungsten bronze structure metal oxide contains at least metal elements of Ba, Bi, Ca, and Nb, the metal elements satisfying the following conditions in terms of molar ratio; and has a C-axis orientation. The compound shows Ba/Nb=a: 0.363<a<0.399, Bi/Nb=b: 0.0110<b<0.0650, and Ca/Nb=c: 0.005<c<0.105. The tungsten bronze structure metal oxide preferably includes (1−x).CaBaNbO−x.BaBiNbO(0.30≦x≦0.95).