发明授权
- 专利标题: Droplet discharging device and particle manufacturing device
- 专利标题(中): 液滴放电装置和颗粒制造装置
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申请号: US13786658申请日: 2013-03-06
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公开(公告)号: US08919902B2公开(公告)日: 2014-12-30
- 发明人: Shinji Aoki , Andrew Mwaniki Mulwa , Yasutada Shitara
- 申请人: Shinji Aoki , Andrew Mwaniki Mulwa , Yasutada Shitara
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Cooper & Dunham LLP
- 优先权: JP2012-061427 20120319
- 主分类号: B41J29/38
- IPC分类号: B41J29/38 ; B41J2/045
摘要:
A droplet discharging device including a discharging hole to discharge droplets, a piezoelectric element that deforms with electrical charging and discharging to discharge droplets therefrom, a piezoelectric element drive circuit that drives the piezoelectric element to cause it to charge and discharge, wherein the piezoelectric element drive circuit has a control signal generating unit to generate control signals that control outputs of drive signals applied to the piezoelectric circuit and a drive signal output unit to output the drive signals applied to the piezoelectric element based on the control signals, wherein the drive signal output unit includes a first field effect transistor that operates to supply an electric current to the piezoelectric element based on the control signals when charging the piezoelectric element and a second field effect transistor that operates to discharge an electric current from the piezoelectric element based on the control signals when discharging the piezoelectric element.
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