An ink jet recording head includes a substrate provided with an energy generating element to generate energy used for discharging ink, a discharge port through which the ink is discharged, a supply port for supplying the ink, and an ink path formed on the substrate for making the discharge port and the...http://www.google.fr/patents/US7857429?utm_source=gb-gplus-shareBrevet US7857429 - Ink jet recording head and manufacturing method of ink jet recording head
Ink jet recording head and manufacturing method of ink jet recording head
