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:
Aug. 01, 2017
Filed:
Mar. 07, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Takanori Matsuda, Chofu, JP;
Tatsuo Furuta, Machida, JP;
Yasushi Shimizu, Fujisawa, JP;
Shinya Koyama, Tokyo, JP;
Akira Uebayashi, Tokyo, JP;
Hiroshi Saito, Kawasaki, JP;
Makoto Kubota, Yokohama, JP;
Kenichi Akashi, Kawasaki, JP;
Jumpei Hayashi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a lead-free piezoelectric material having a high piezoelectric constant and a high mechanical quality factor in a wide operating temperature range. The piezoelectric material includes a perovskite-type metal oxide represented by Formula (1):(BaCa)(TiZr)O(1.00≦≦1.01, 0.125≦<0.155, and 0.041≦≦0.074)as a main component. The metal oxide contains Mn in a content of 0.12 parts by weight or more and 0.40 parts by weight or less based on 100 parts by weight of the metal oxide on a metal basis.