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. 01, 2022
Filed:
Jan. 29, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Fuji Chemical Co., Ltd., Osaka, JP;
Kanako Oshima, Tokyo, JP;
Miki Ueda, Tokyo, JP;
Takanori Matsuda, Chofu, JP;
Makoto Kubota, Yokohama, JP;
Hisato Yabuta, Machida, JP;
Fumio Uchida, Daito, JP;
Hiroki Imai, Nakatsugawa, JP;
Kenji Maeda, Hirakata, JP;
Chiemi Shimizu, Hirakata, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
FUJI CHEMICAL CO., LTD., Osaka, JP;
Abstract
Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Na(BiBa)NbTiO(where 0.84≤x≤0.92, 0.84≤y≤0.92, 0.002≤(w+s)(1−y)≤0.035, and 0.9≤w/s≤1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.