Invention Grant
- Patent Title: Nozzle plate, liquid ejection head, and inkjet recording device
- Patent Title (中): 喷嘴板,液体喷射头和喷墨记录装置
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Application No.: US14594240Application Date: 2015-01-12
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Publication No.: US09205653B2Publication Date: 2015-12-08
- Inventor: Tomohiro Tamai , Toshiroh Tokuno
- Applicant: Tomohiro Tamai , Toshiroh Tokuno
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2014-010542 20140123; JP2014-026157 20140214
- Main IPC: B41J2/16
- IPC: B41J2/16 ; B41J2/14

Abstract:
An improved nozzle plate includes a nozzle substrate having nozzle holes through which droplets are ejected, and a layer containing a compound having a perfluoro polyether skeleton its molecule. The layer is formed on the nozzle substrate on the side on which the droplets are ejected. The surface of the nozzle plate has an X-ray Photoelectron Spectroscopy (XPS) spectrum ascribable to oxygen atom such that the ratio of the area of peak 1 to the area of peak 2 ranges from 0.35 to 0.45, where the peak 1 represents peaks observed between 534 eV and 540 eV and the peak 2 represents peaks observed between 528 eV and 534 eV among peaks between 528 eV to 540 eV.
Public/Granted literature
- US20150202869A1 NOZZLE PLATE, LIQUID EJECTION HEAD, AND INKJET RECORDING DEVICE Public/Granted day:2015-07-23
Information query
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