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US07901064B2 Ink jet recording head with ink filter formed of a plurality of stacked films 有权
具有由多个层叠膜形成的油墨过滤器的喷墨记录头

Ink jet recording head with ink filter formed of a plurality of stacked films
Abstract:
An ink jet recording head includes: a substrate; a plurality of ink discharge ports formed to a front face side of the substrate, and a plurality of ink flow paths communicating with the ink discharge ports; an ink supply opening extending through the substrate and communicating with the plurality of ink flow paths; and a filter formed in an opening portion of the ink supply opening arranged in the front face side of the substrate, the filter being constituted of two or more stacked films having formed therein a plurality of opening portions. In this case, the stacked films are arranged with a spacing therebetween.
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