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:
Dec. 11, 2018
Filed:
Jan. 13, 2017
Osamu Machida, Kanagawa, JP;
Masahiro Ishimori, Tokyo, JP;
Atsushi Takeuchi, Kanagawa, JP;
Shuya Abe, Kanagawa, JP;
Osamu Machida, Kanagawa, JP;
Masahiro Ishimori, Tokyo, JP;
Atsushi Takeuchi, Kanagawa, JP;
Shuya Abe, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electromechanical transducer element includes a first electrode; an electromechanical transducer film stacked on one surface of the first electrode; a second electrode stacked on the electromechanical transducer film; and wiring formed on the second electrode. In an at least one cross section, each of a boundary, on a second electrode side, of the electromechanical transducer film and a boundary, on a side opposite to the electromechanical transducer film, of the second electrode is a curved shape protruding away from the first electrode. In the at least one cross section, each of a film thickness of the electromechanical transducer film and a film thickness of the second electrode becomes thinner toward end portions from a maximum height portion.