Invention Grant
- Patent Title: Nozzle plate, liquid discharge head, liquid discharge device, and apparatus for discharging liquid
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Application No.: US15510763Application Date: 2015-10-22
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Publication No.: US10252526B2Publication Date: 2019-04-09
- Inventor: Tomohiro Tamai
- Applicant: Tomohiro Tamai
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2014-217870 20141025; JP2015-146971 20150724
- International Application: PCT/JP2015/005322 WO 20151022
- International Announcement: WO2016/063539 WO 20160428
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/16

Abstract:
A nozzle plate includes a nozzle base member including a plurality of nozzle holes formed therethrough, the plurality of nozzle holes serving as nozzles that discharge droplets; and a liquid-repellent film of a liquid-repellent material formed on a droplet discharge surface of the nozzle base member, the liquid-repellent material containing a liquid-repellent group. Each of the plurality of nozzle holes includes a straight hole part, the straight hole part extending from the droplet discharge surface of the nozzle base member and having a constant diameter in a thickness direction of the nozzle base member. The liquid-repellent group contained in the liquid-repellent material is attached to an inner nozzle wall of the straight hole part. When the nozzle hole is supplied with pure water, a meniscus of the pure water stays in the straight hole part.
Public/Granted literature
- US20170274652A1 NOZZLE PLATE, LIQUID DISCHARGE HEAD, LIQUID DISCHARGE DEVICE, AND APPARATUS FOR DISCHARGING LIQUID Public/Granted day:2017-09-28
Information query
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