Piezoelectric actuator, liquid ejection head, and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorKeisuke HAYASHI
Life of this patent
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Abstract
A piezoelectric actuator includes a piezoelectric member having piezoelectric pillars and grooves alternately arrayed. Each of the grooves has a first width at a bottom side of the piezoelectric pillars and a second width at an upper side of the piezoelectric pillars in a direction in which the piezoelectric pillars are arrayed. The first width is greater than the second width.
Claims8
A piezoelectric actuator, comprising a piezoelectric member having piezoelectric pillars and grooves alternately arrayed,
- each of the grooves having a first width at a bottom side of the piezoelectric pillars and a second width at an upper side of the piezoelectric pillars in a direction in which the piezoelectric pillars are arrayed, the first width being greater than the second width.
A liquid ejection head comprising a piezoelectric actuator having a piezoelectric member,
- the piezoelectric member having piezoelectric pillars and grooves alternately arrayed, each of the grooves having a first width at a bottom side of the piezoelectric pillars and a second width at an upper side of the piezoelectric pillars in a direction in which the piezoelectric pillars are arrayed, the first width being greater than the second width.
An image forming apparatus comprising a liquid ejection head having a piezoelectric actuator,
- the piezoelectric actuator having a piezoelectric member,
- the piezoelectric member having piezoelectric pillars and grooves alternately arrayed, each of the grooves having a first width at a bottom side of the piezoelectric pillars and a second width at an upper side of the piezoelectric pillars in a direction in which the piezoelectric pillars are arrayed, the first width being greater than the second width.
Dependencies are inferred from the claim text.