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:
Sep. 28, 2010
Filed:
Feb. 21, 2007
Toshihiro Ifuku, Yokohama, JP;
Katsumi Aoki, Yokohama, JP;
Takanori Matsuda, Tokyo, JP;
Hiroshi Funakubo, Yokohama, JP;
Shintaro Yokoyama, Yokohama, JP;
Yong Kwan Kim, Yokohama, JP;
Hiroshi Nakaki, Yokohama, JP;
Rikyu Ikariyama, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Katsumi Aoki, Yokohama, JP;
Takanori Matsuda, Tokyo, JP;
Hiroshi Funakubo, Yokohama, JP;
Shintaro Yokoyama, Yokohama, JP;
Yong Kwan Kim, Yokohama, JP;
Hiroshi Nakaki, Yokohama, JP;
Rikyu Ikariyama, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Tokyo Institute of Technology, Tokyo, JP;
Abstract
Provided are a piezoelectric film, a piezoelectric film element, a liquid discharge head using the piezoelectric film element, and a liquid discharge apparatus. A piezoelectric film element that can be suitably used for a discharge pressure-generating element of a liquid discharge head is obtained by using an epitaxial oxide film composed of a perovskite composite oxide constituted according to a general formula ABOas a piezoelectric film. The epitaxial oxide film has at least an A domain and a B domain having a crystal orientation deviation with respect to each other. The crystal orientation deviation between the A domain and the B domain is less than 2°.