There are provided n number of line-type inkjet nozzles (2) which include nozzles (4) that eject a liquid material and are arranged in a row, and which are arranged in parallel with each other so that positions of the nozzles (4) are shifted from each other by 1/n of a nozzle pitch (P1). Thus, an inkjet head (1) as a whole has a state equivalent to a state in which the nozzles (4) are arranged at 1/n of a nozzle pitch of one line-type inkjet nozzle (2). The inkjet head (1) is capable of adjusting a timing of ejecting the liquid material for each line-type inkjet nozzle (2). Accordingly, adjustment of a dot pitch such as fine coating and rough coating can be performed with ease.