发明授权
- 专利标题： Liquid discharge head substrate and head unit
- 专利标题（中）： 液体排出头基板和头单元
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申请号： US13043893申请日： 2011-03-09
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公开(公告)号： US08523324B2公开(公告)日： 2013-09-03
- 发明人: Takaaki Yamaguchi , Yoshiyuki Imanaka , Koichi Omata , Toshio Negishi
- 申请人： Takaaki Yamaguchi , Yoshiyuki Imanaka , Koichi Omata , Toshio Negishi
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Canon USA Inc. IP Division
- 优先权： JP2010-054719 20100311
- 主分类号： B41J2/14
- IPC分类号： B41J2/14 ; B41J2/16
摘要：
A liquid discharge head substrate includes an external terminal, a diode, a first conductive layer, a second conductive layer, and a third conductive layer. The external terminal is configured to connect to an external. The first conductive layer is connected to the external terminal for causing an input current to flow from the external terminal, and the diode includes an anode and a cathode. The second conductive layer is connected to the first conductive layer and one electrode of the anode and cathode, and causes a surge current generated when a surge voltage is applied from the external terminal, to flow from the first conductive layer to the one electrode. The third conductive layer is connected to the other electrode of the anode and the cathode and passes the surge current flowing from the one electrode to the other electrode. The first conductive layer includes a part laminating with the second conductive layer sandwiching an insulation layer, and does not include a part laminating with the third conductive layer.
公开/授权文献
- US20110221823A1 LIQUID DISCHARGE HEAD SUBSTRATE AND HEAD UNIT 公开/授权日：2011-09-15
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