Invention Grant
- Patent Title: Liquid discharge head and method of manufacturing the same
- Patent Title (中): 液体排放头及其制造方法
-
Application No.: US11847891Application Date: 2007-08-30
-
Publication No.: US07935264B2Publication Date: 2011-05-03
- Inventor: Satoshi Nozu , Tatsuo Furuta , Takehito Nishida
- Applicant: Satoshi Nozu , Tatsuo Furuta , Takehito Nishida
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-243986 20060908
- Main IPC: G01D15/00
- IPC: G01D15/00 ; G11B5/127

Abstract:
A liquid discharge head includes a plurality of liquid chambers for pressurizing a liquid, the plurality of liquid chambers communicating with discharge ports respectively; and a plurality of piezoelectric elements provided in correspondence with the plurality of liquid chambers, respectively, the plurality of piezoelectric elements each including a lower electrode, a piezoelectric body film, and an upper electrode which are sequentially laminated in the stated order from the plurality of liquid chambers side. The lower electrode is provided up to a region corresponding to a portion between the plurality of liquid chambers. The piezoelectric body film is reduced in thickness at the region corresponding to the portion between the plurality of liquid chambers relative to the thickness of a region corresponding to the plurality of liquid chambers and completely covers at least the lower electrode provided to the region corresponding to the portion between the plurality of liquid chambers.
Public/Granted literature
- US20080062230A1 LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2008-03-13
Information query