发明授权
- 专利标题: Liquid discharge head
- 专利标题(中): 排液头
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申请号: US11468171申请日: 2006-08-29
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公开(公告)号: US07866799B2公开(公告)日: 2011-01-11
- 发明人: Naozumi Nabeshima , Ken Tsuchii
- 申请人: Naozumi Nabeshima , Ken Tsuchii
- 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: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2005-253544 20050901
- 主分类号: B41J2/05
- IPC分类号: B41J2/05
摘要:
A liquid discharge head includes a substrate which has a heating resistive element for generating a bubble in a liquid, and a first wall member which faces the heating resistive element. A discharge port which discharges the liquid is provided in the first wall member, and an ink channel communicated with the discharge port is formed between the substrate and the first wall member. In the liquid discharge head, the substrate includes a second wall member around the heating resistive element, the second wall member being protruded in a direction toward the discharge port, the first wall member includes a protrusion portion in a surface facing the substrate, the protrusion portion being protruded toward the heating resistive element, and an end portion of the protrusion portion exists in a region in which the second wall member surrounds the heating resistive element.
公开/授权文献
- US20070046733A1 LIQUID DISCHARGE HEAD 公开/授权日:2007-03-01