Invention Grant
- Patent Title: Droplet discharging head, image forming apparatus, and film forming apparatus
- Patent Title (中): 喷液头,成像装置和成膜装置
-
Application No.: US11688046Application Date: 2007-03-19
-
Publication No.: US07804225B2Publication Date: 2010-09-28
- Inventor: Hayato Takahashi
- Applicant: Hayato Takahashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP2006-075507 20060317
- Main IPC: H01L41/08
- IPC: H01L41/08

Abstract:
A droplet discharging head, includes a diaphragm, a fixing plate, and a piezoelectric element. The piezoelectric element includes a first electrode, a second electrode, a piezoelectric body layer interposed between the first and second electrodes, a first internal electrode extending from the first electrode between the first, and second electrodes, and a second internal electrode extending from the second electrode between the first and second electrodes. At least a part of a first end face of the piezoelectric element is in contact with the diaphragm. The first end face includes a first end of the first electrode, a first end of the second electrode, and a first end of the piezoelectric Body. The piezoelectric body layer includes an active layer that overlaps both the first and second internal electrodes, a first inactive layer that overlaps only the first internal electrode, and a second inactive layer that overlaps only the second internal electrode. A thickness of the second inactive layer between the second electrode and the active layer is larger than a thickness of the first inactive layer between the first electrode and the active layer.
Public/Granted literature
- US20070216263A1 DROPLET DISCHARGING HEAD, IMAGE FORMING APPARATUS, AND FILM FORMING APPARATUS Public/Granted day:2007-09-20
Information query
IPC分类: