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. 15, 2018
Filed:
Mar. 02, 2017
Masaru Shinkai, Kanagawa, JP;
Satoshi Mizukami, Kanagawa, JP;
Toshiaki Masuda, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An electromechanical transducer element includes a first electrode, a second electrode, and a piezoelectric material. The piezoelectric material is disposed between the first electrode and the second electrode and deformable with a voltage applied in accordance with a drive signal. The piezoelectric material is made of a composite oxide having a perovskite structure preferentially oriented in at least one of a (100) plane and a (001) plane. A drop in diffraction intensity is included in a rocking curve corresponding to at least one of a (200) plane and a (002) plane measured at a position of 2θ where the diffraction intensity is largest at a peak of diffraction intensity corresponding to the (200) plane out of peaks of diffraction intensity measured by an X-ray diffraction θ-2θ method.