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:
Apr. 26, 2011
Filed:
Dec. 16, 2009
Hiroshi Saito, Yokohama, JP;
Takanori Matsuda, Chofu, JP;
Kaoru Miura, Matsudo, JP;
Kenji Takashima, Saitama, JP;
Masaki Azuma, Kyoto, JP;
Takashi Iijima, Tsukuba, JP;
Hiroshi Funakubo, Yokohama, JP;
Soichiro Okamura, Inagi, JP;
Nobuhiro Kumada, Kofu, JP;
Satoshi Wada, Kofu, JP;
Hiroshi Saito, Yokohama, JP;
Takanori Matsuda, Chofu, JP;
Kaoru Miura, Matsudo, JP;
Kenji Takashima, Saitama, JP;
Masaki Azuma, Kyoto, JP;
Takashi Iijima, Tsukuba, JP;
Hiroshi Funakubo, Yokohama, JP;
Soichiro Okamura, Inagi, JP;
Nobuhiro Kumada, Kofu, JP;
Satoshi Wada, Kofu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Kyoto University, Kyoto, JP;
Tokyo Institute of Technology, Tokyo, JP;
University of Yamanashi, Yamanashi, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Tokyo University of Science Educational Foundation Administrative Organization, Tokyo, JP;
Abstract
An oxynitride piezoelectric material, which exhibits ferroelectricity and has good piezoelectric properties, and a method of producing the oxynitride piezoelectric material. The oxynitride piezoelectric material includes a tetragonal perovskite-type oxynitride represented by the following general formula (1):ABiBB'ON  (1),where A represents a divalent element, B and B′ each represent a tetravalent element, x represents a numerical value of 0.35 or more to 0.6 or less, y represents a numerical value of 0.35 or more to 0.6 or less, z represents a numerical value of 0.35 or more to 0.6 or less, and δ1 and δ2 each represent a numerical value of −0.2 or more to 0.2 or less, in which the A includes at least one kind selected from Ba, Sr, and Ca and the B and the B′ each include at least one kind selected from Ti, Zr, Hf, Si, Ge, and Sn.