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:
Mar. 17, 2015
Filed:
Mar. 30, 2012
Kouichi Sameshima, Kyoto, JP;
Kusunoki Higashino, Osaka, JP;
Kouichi Sameshima, Kyoto, JP;
Kusunoki Higashino, Osaka, JP;
Konica Minolta, Inc., Tokyo, JP;
Abstract
In a piezoelectric actuator () that vibrates a diaphragm () provided on a pressure chamber () formed in a substrate () toward the pressure chamber (), a lower electrode (), a piezoelectric member () and an upper electrode () sequentially stacked on the diaphragm () are provided, on a part of the piezoelectric member () above the side wall of the pressure chamber (), an upper electrode drawing portion () drawn out from the upper electrode () above the pressure chamber () is formed and under the upper electrode drawing portion (), the piezoelectric member () is separated by a gap portion (S) above a boundary surface between the side wall () of the pressure chamber () and the pressure chamber () in the substrate ().