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:
May. 29, 2018
Filed:
May. 28, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Takanori Matsuda, Chofu, JP;
Takayuki Watanabe, Yokohama, JP;
Shunsuke Murakami, Kawasaki, JP;
Hiroshi Saito, Kawasaki, JP;
Tatsuo Furuta, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention can provide a lead-free piezoelectric material having a high piezoelectric constant in the room temperature range. The present invention for this purpose is a piezoelectric material including a main component containing a perovskite metal oxide represented by following general formula (1),Ba(TiZr)O  (1)where 0.02≤x≤0.13 and 0.986≤a≤1.02, a first auxiliary component containing Mn, and a second auxiliary component containing trivalent Bi, wherein an amount of the contained Mn is 0.0020 moles or more and 0.0150 moles or less relative to 1 mole of the metal oxide, and an amount of the contained Bi is 0.00042 moles or more and 0.00850 moles or less relative to 1 mole of the metal oxide.