Inkjet device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKAZUKI FUKADA, HIDEHIRO YOSHIDA
Life of this patent
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Abstract
An inkjet device includes a pressure chamber that stores ink, a piezoelectric element that is away from the pressure chamber in a first direction, and a diaphragm that is disposed between the pressure chamber and the piezoelectric element in the first direction. The diaphragm includes a pressure receiving portion. The pressure receiving portion includes a top portion and a base portion. The top portion is in contact with the piezoelectric element. The base portion is connected to a body of the diaphragm. A width of the base portion is larger than a width of the top portion in a second direction that is at least one direction perpendicular to the first direction.
Claims15
An inkjet device comprising:
- a pressure chamber that stores ink;
- a piezoelectric element that is away from the pressure chamber in a first direction;
- and
- a diaphragm that is disposed between the pressure chamber and the piezoelectric element in the first direction,
- wherein the diaphragm includes a pressure receiving portion, the pressure receiving portion including a top portion and a base portion,
- the top portion is in contact with the piezoelectric element,
- the base portion is connected to a body of the diaphragm, and
- a width of the base portion is larger than a width of the top portion in a second direction that is at least one direction perpendicular to the first direction.
An inkjet device comprising:
- a pressure chamber that stores ink;
- a piezoelectric element that is away from the pressure chamber in a first direction;
- and
- a diaphragm that is disposed between the pressure chamber and the piezoelectric element in the first direction,
- wherein the piezoelectric element has a central region in a second direction that is at least one direction perpendicular to the first direction, and an end portion region adjacent to the central region in the second direction,
- the central region receives a voltage applied to the piezoelectric element, and
- the end portion region does not receive a voltage applied to the piezoelectric element.
An inkjet device comprising:
- a pressure chamber that stores ink;
- a piezoelectric element that is away from the pressure chamber in a first direction;
- and
- a diaphragm that is disposed between the pressure chamber and the piezoelectric element in the first direction,
- wherein the diaphragm includes a pressure receiving portion having a top portion which is in contact with the piezoelectric element, and
- a width of the top portion is smaller than a width of the piezoelectric element in a second direction that is at least one direction perpendicular to the first direction.
Dependencies are inferred from the claim text.