Patent ID: 8608303

Claim:
An inkjet recording head comprising: a substrate provided with a plurality of energy generating elements for discharging ink and an ink supply port for supplying ink to the energy generating elements; and a flow path member which has a plurality of discharge ports for discharging the ink corresponding to the plurality of energy generating elements, a plurality of ink flow paths in communication with the plurality of discharge ports, and a common liquid chamber in communication with the plurality of ink flow paths, wherein the common liquid chamber is divided by a shield wall into a discharge port area communicating with the discharge ports and a drainage port area communicating with drainage ports through which the ink is drained, the ink flows into the discharge port area through a filter, in a case where a smallest diameter among diameters of the discharge ports and diameters of the ink flow paths is denoted by A and a largest diameter of openings of the filter is denoted by B, A≧B is satisfied, and the ink does not flow into the drainage port area through the filter.