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:
Jul. 09, 2013
Filed:
Jun. 09, 2008
Kaoru Miura, Matsudo, JP;
Toshihiro Ifuku, Yokohama, JP;
Kenichi Takeda, Yokohama, JP;
Tetsuro Fukui, Yokohama, JP;
Hiroshi Funakubo, Yokohama, JP;
Kaoru Miura, Matsudo, JP;
Toshihiro Ifuku, Yokohama, JP;
Kenichi Takeda, Yokohama, JP;
Tetsuro Fukui, Yokohama, JP;
Hiroshi Funakubo, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a piezoelectric material which can be applied even to the MEMS technique, exhibits satisfactory piezoelectricity even at high ambient temperatures and is environmentally clean, namely, a piezoelectric material including an oxide obtained by forming a solid solution composed of two perovskite oxides A(1)B(1)Oand A(2)B(2)Odifferent from each other in crystalline phase, the oxide being represented by the following general formula (1):X{A(1)B(1)O}−(1−X){A(2)B(2)O}  (1)wherein 'A(1)' and 'A(2)' are each an element including an alkali earth metal and may be the same or different from each other; “B(1)” and “B(2)” each include two or more metal elements, and either one of “B(1)” and “B(2)” contains Cu in a content of 3 atm % or more; and “X” satisfies the relation 0<X<1.