An ink jet recording head is provided with a recording element substrate having a plurality of discharge energy generating elements for generating energy utilized for discharging ink droplets, a ceiling plate arranged on the recording element substrate having an ink chamber formed to retain ink in the...http://www.google.com.au/patents/US6113214?utm_source=gb-gplus-sharePatent US6113214 - Ink jet recording head having components made from the same material, recording apparatus using the head, and method for manufacturing such head and ink jet recording apparatus
