Invention Grant
- Patent Title: Liquid ejecting head, image forming apparatus, and method for manufacturing liquid ejecting head
- Patent Title (中): 液体喷射头,图像形成装置和液体喷射头的制造方法
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Application No.: US12508719Application Date: 2009-07-24
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Publication No.: US08118413B2Publication Date: 2012-02-21
- Inventor: Kenichiroh Hashimoto
- Applicant: Kenichiroh Hashimoto
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2008-192205 20080725
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
A liquid ejecting head includes multiple nozzles to eject liquid droplet, a vibration unit including a vibration plate, the vibration plate forming at least one wall face of multiple liquid paths that communicate with the respective nozzles, a driving member to move the vibration plate, and the vibration unit formed of laminated multi-layered member that includes a resin layer to form the vibration plate, a first metal layer located on one side of the resin layer, and a second metal layer located on the other side of the resin layer, and wherein the first and second metal layers are formed of different metals, that is, the first metal layer has an ionization tendency higher than that of hydrogen, the second metal layer has an ionization tendency lower than that of hydrogen.
Public/Granted literature
- US20100020130A1 LIQUID EJECTING HEAD, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING LIQUID EJECTING HEAD Public/Granted day:2010-01-28
Information query
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