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AssigneeCanon Kabushiki Kaisha
InventorsToshinori Hasegawa, Masaki Inaba, Akio Saito, Akira Goto, Masao Furukawa, Shin Ishimatsu, Miki Itoh
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A method for manufacturing a liquid-discharging recording head can prevent deviation in the dimensions and the pitch of grooves, serving as liquid channels, and holes, serving as discharging ports, and generation of burrs around discharging ports while maintaining the grooves and the holes to desired sizes and without increasing a time required for the processing when forming the grooves and the holes by projecting a laser beam. When performing ablation processing of the liquid-channel grooves or the discharging ports in a top-plate blank by projecting the laser beam, the processing is performed by changing the energy density per unit time of the laser beam continuously or stepwise by adjusting the oscillation voltage or the oscillation frequency of the laser beam, attenuating the laser beam, or moving a substance to be processed along the optical axis.
A method for manufacturing a liquid-discharging recording head by projecting laser energy, via a laser beam having an energy density per unit time, onto a subject to be processed, to form holes serving as discharging ports for discharging a liquid, said method comprising:
A method for manufacturing a liquid-discharging recording head by projecting laser energy, via a laser beam having an energy density per unit time, onto a subject to be processed, to form holes serving as discharging ports for discharging a liquid, said method comprising the following steps for forming a hole:
Dependencies are inferred from the claim text.