A laser processing method for performing laser ablation process on a work piece by radiating laser beam on the work piece includes the step of forming simultaneously a plurality of process shapes arranged at a predetermined interval by use of laser beam of plural pulses having extremely large spatial...http://www.google.de/patents/US6693656?utm_source=gb-gplus-sharePatent US6693656 - Laser processing method, method for manufacturing ink jet recording head using such method of manufacture, and ink jet recording head manufactured by such method of manufacture
