| 发明名称 | Liquid ejection head | ||
| 摘要 | A liquid ejection head includes a recording element substrate including an ejection port that ejects liquid, and an energy generating element that generates energy used to eject liquid, an electric wiring substrate including wiring for transmitting electric power for driving the energy generating element, and an opening that exposes the recording element substrate, a plurality of connecting portions that electrically connect the recording element substrate and the electric wiring substrate, a recess formed between the recording element substrate and the electric wiring substrate, and at least one groove formed in the bottom of the recess corresponding to at least one part where the connecting portions are formed. The at least one groove includes a first portion formed along an arranging direction of the plurality of connecting portions, and a second portion formed in a direction intersecting with the arranging direction. | ||
| 申请公布号 | US8827424(B2) | 申请公布日期 | 2014.09.09 |
| 申请号 | US201213595166 | 申请日期 | 2012.08.27 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Fukai Hisashi;Nakajo Naoki |
| 分类号 | B41J2/14;B41J2/04;B41J2/16 | 主分类号 | B41J2/14 |
| 代理机构 | Canon U.S.A., Inc., IP Division | 代理人 | Canon U.S.A., Inc., IP Division |
| 主权项 | 1. A liquid ejection head comprising: a recording element substrate including an ejection port that ejects liquid, and an energy generating element that generates energy used to eject liquid; an electric wiring substrate including wiring for transmitting electric power for driving the energy generating element, and an opening that exposes the recording element substrate; a plurality of connecting portions that electrically connect the recording element substrate and the electric wiring substrate; a recess formed between the recording element substrate and the electric wiring substrate; and at least one groove formed in the bottom of the recess corresponding to at least one part where the connecting portions are formed, wherein the at least one groove includes a first portion formed along an arranging direction of the plurality of connecting portions, and a second portion formed in a direction intersecting with the arranging direction, wherein the width of the second portion of the at least one groove is larger than the width of the first portion of the at least one groove. | ||
| 地址 | Tokyo JP | ||