| Patent application number | Description | Published |
|---|
| 20100054960 | PULSATION GENERATING MECHANISM, CONNECTING FLOW CHANNEL TUBE, AND FLUID EJECTING APPARATUS - A fluid ejecting apparatus having a fluid chamber, an inlet flow channel, and a nozzle configured to eject fluid supplied from the inlet flow channel to the fluid chamber from the nozzle in a pulsed manner by changing the volume of the fluid chamber includes: a diaphragm; a wall surface provided so as to oppose the diaphragm; a spacer being provided between the diaphragm and the wall surface and having a cylindrical through hole; a piezoelectric element configured to displace the diaphragm; and a connecting flow channel tube communicated with the fluid chamber, wherein the nozzle is provided at an end of the connecting flow channel tube opposite to the fluid chamber, the fluid chamber is defined by the diaphragm, the wall surface, and an inner surface of the through hole of the spacer, and the inlet flow channel is defined by a groove provided on the wall surface and the spacer and is communicated with the fluid chamber. | 03-04-2010 |
| 20100078495 | FLUID EJECTION DEVICE, DRIVING METHOD OF FLUID EJECTION DEVICE, AND OPERATING INSTRUMENT - A fluid ejection device includes: a fluid chamber whose capacity is variable; an inlet flow path and an outlet flow path communicating with the fluid chamber; a capacity changing unit which changes the capacity of the fluid chamber; a fluid supplying unit which supplies fluid to the inlet flow path; a fluid ejection opening disposed at an end of the outlet flow path opposite to an end communicating with the fluid chamber; a vibrating unit which vibrates a component in the vicinity of the fluid ejection opening; a vibration detecting unit which detects the level of vibration of the component in the vicinity of the fluid ejection opening; and an operation control unit which controls operation of the capacity changing unit based on the level of the vibration detected by the vibration detecting unit. | 04-01-2010 |
| 20100079522 | FLUID EJECTION DEVICE, DRIVING METHOD OF FLUID EJECTION DEVICE, AND OPERATING INSTRUMENT - A fluid ejection device includes: a fluid chamber whose capacity is variable; an inlet flow path and an outlet flow path communicating with the fluid chamber; a capacity changing unit which changes the capacity of the fluid chamber; a fluid supplying unit which supplies fluid to the inlet flow path; a fluid ejection opening disposed at an end of the outlet flow path opposite to an end communicating with the fluid chamber; a first electrode of a predetermined polarity having a first contact portion disposed at the fluid ejection opening or a component in the vicinity of the fluid ejection opening; a second electrode having a polarity different from the predetermined polarity and having a second conductive contact portion; a conduction judging unit which judges whether the first electrode and the second electrode are conducted; and an operation control unit which controls operation of the capacity changing unit based on judgment result of the conduction judging unit. | 04-01-2010 |
| 20100082053 | FLUID EJECTION DEVICE, FLUID EJECTION METHOD AND FLUID EJECTION SURGICAL INSTRUMENT - A fluid ejection device includes: a fluid chamber into which fluid flows; a volume varying unit that varies the volume of the fluid chamber; an inlet fluid channel and an outlet fluid channel intercommunicating with the fluid chamber; a fluid ejection port that ejects fluid flowing out from the outlet fluid channel; a fluid supply unit that supplies fluid into the inlet fluid channel; a controller that controls the variation of the volume of the fluid chamber by the volume varying unit; and a color detector that detects color of a fluid ejection target area facing the fluid ejection port, wherein the controller controls the variation of the volume of the fluid chamber by the volume varying unit in accordance with the color detected by the color detecting unit. | 04-01-2010 |
| 20100082054 | FLUID EJECTION DEVICE AND FLUID EJECTION METHOD - A fluid ejection device includes: a fluid chamber in which fluid flows; a volume varying unit having a pressure generating element that varies the volume of the fluid chamber on the basis of a driving signal; an inlet fluid channel and an outlet fluid channel intercommunicating with the fluid chamber; a fluid channel pipe having a connection fluid channel that intercommunicates with the outlet fluid channel at a first end thereof and intercommunicates with a fluid ejection port at a second end thereof; a fluid supply unit that supplies fluid to the inlet fluid channel; and a controller that applies a driving signal to the pressure generating element and controls variation of the volume of the fluid chamber by the volume varying unit, wherein the controller applies a driving signal to the pressure generating element so that a maximum ejection velocity of fluid in liquid is larger than a maximum ejection velocity of fluid in the air. | 04-01-2010 |
| 20110006127 | PULSATING FLOW GENERATING APPARATUS AND METHOD OF CONTROLLING PULSATING FLOW GENERATING APPARATUS - Pulsating flow generating apparatus that changes the volume of a fluid chamber and injects fluid from a fluid injection opening in a pulsed manner, includes: an inlet flow channel for supplying fluid from a fluid supplying unit to the fluid chamber; a volume changing unit that changes the volume of the fluid chamber; an outlet flow channel that delivers the fluid from the fluid chamber to the fluid injection opening; a discharge flow channel that discharges the fluid from the fluid chamber; and an opening and closing valve that opens and closes the discharge flow channel, wherein the synthetic inertance of the discharge flow channel is set smaller than the synthetic inertance of the outlet flow channel, an operation of the volume changing unit is started while closing the opening and closing valve, and the operation of the volume changing unit is stopped while opening the opening and closing valve. | 01-13-2011 |
| 20110036859 | FLUID EJECTION DEVICE AND METHOD TO CONTROL FLUID EJECTION DEVICE - A fluid ejection device includes a pulsating flow generation section adapted to eject a fluid in a pulsed manner; a fluid supply section adapted to supply the pulsating flow generation section with the fluid; a fluid supply tube having flexibility adapted to communicate the pulsating flow generation section and the fluid supply section with each other; and a drive control section adapted to perform drive control of the pulsating flow generation section and the fluid supply section, wherein the drive control section starts up the pulsating flow generation section, makes the fluid supply section supply the fluid at a first flow rate for a predetermined time period, and then makes the fluid supply section supply the fluid at a second flow rate lower than the first flow rate after the predetermined time period elapses. | 02-17-2011 |
| 20110037795 | FLUID EJECTION METHOD AND FLUID EJECTION DEVICE - A fluid ejection method includes: supplying fluid at a predetermined fluid supply flow rate to a pressure chamber; generating a pulsed flow by varying the volume of the pressure chamber at a predetermined frequency; and ejecting the pulsed flow, wherein the fluid supply flow rate is proportional to the frequency. | 02-17-2011 |
| 20110054505 | FLUID EJECTION DEVICE AND METHOD OF CONTROLLING FLUID EJECTION DEVICE - A fluid ejection device includes: a fluid chamber; a volume varying unit configured to vary the volume of the fluid chamber; a fluid supplying unit configured to supply fluid to the fluid chamber at a predetermined pressure; and an ejection command switching unit configured to switch a fluid ejection between a pulsed flow ejection which ejects the fluid in a pulsed manner by activating the volume varying unit and varying the volume of the fluid chamber and a continuous flow ejection which ejects the fluid with a fluid supply pressure from the fluid supplying unit higher than that in the case of the pulsed flow ejection in a state in which the volume varying unit is stopped. | 03-03-2011 |
| 20110089256 | FLUID EJECTION APPARATUS - A fluid ejection apparatus ejecting fluid from an ejection port, includes: a suction port provided at a position apart from the ejection port and applied with a negative pressure; and a fluid channel provided between the vicinity of the ejection port and the suction port, and configured to suck the fluid in the vicinity of the ejection port by the surface tension of the fluid and move the same toward the suction port. | 04-21-2011 |
