| 摘要 |
<p>An ink jet recording head and an ink jet recorder which are capable of preventing the occurrence of separation of and cracks in an end portion of an active section of a piezoelectric body. Specifically an ink jet recording head having a diaphragm constituting a part of a pressure generating chamber (12) communicating with an opening of a nozzle, a piezoelectric element (300) formed on the diaphragm, and an active section (320), which is provided in a region opposed to the pressure generating chamber (12) of the piezoelectric element (300), wherein the recording head is further provided with a vibration restriction portion for partially restricting at least a part of vibration of the part of the diaphragm which is in the vicinity of a boundary between the diaphragm and a circumferential wall of the pressure generating chamber (12).</p> |
