Abstract: An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second etching process so as to correspond to the pressure chamber, and an intermediate layer sandwiched between the first and the second layers. The recording head also has a pressure producing device disposed with its extremity in contact with the land, and a nozzle plate with a nozzle hole bonded to the front surface of the plate-shaped member. An ink particle is jetted through the nozzle hole when the pressure in the pressure chamber is changed by the pressure producing device.

Abstract: An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second etching process so as to correspond to the pressure chamber, and an intermediate layer sandwiched between the first and the second layers. The recording head also has a pressure producing device disposed with its extremity in contact with the land, and a nozzle plate with a nozzle hole bonded to the front surface of the plate-shaped member. An ink particle is jetted through the nozzle hole when the pressure in the pressure chamber is changed by the pressure producing device.

Abstract: A method for placing a liquid material includes a) discharging the liquid material from a plurality of nozzles into a single region of a substrate during a scan of the substrate performed by a head having a nozzle group including the plurality of nozzles using a first electric pulse, and b) discharging the liquid material into the single region from the plurality of nozzles during the scan using a second electric pulse. The first and second electric pulses are supplied to a pressure controller to control pressure of a liquid chamber communicated with the plurality of nozzles so as to cause the plurality of nozzles to discharge the liquid material. The first and second discharge steps are performed by using the same plurality of nozzles during the same scan.

Abstract: A nozzle plate (8) having a nozzle opening (10) formed thereon, a passage forming substrate (70) having a pressure chamber (12), an ink supply port (13) and a common ink chamber (11) formed sequentially to communicate with the nozzle opening (10), and a vibrating plate (9) for being deformed to pressurize the pressure chamber (12) are provided and laminated to constitute a passage unit (30). The passage forming substrate (70) is fabricated by an insert molding using a reinforcing plate (72) as a core and a portion to be an ink passage is partitioned and formed by a resin (71).

Abstract: A dummy piezoelectric element is disposed at least at one of the ends of an array of piezoelectric vibration elements. A region not including internal electrodes is provided in the vicinity of the outer side surface of the dummy piezoelectric vibration element to be formed. When the outer side surface of the dummy piezoelectric element is cut, a shift of a cutting line from a correct cutting line, which is due to high hardness of the internal electrodes, is minimized.

Abstract: In an ink jet apparatus for manufacturing a color filter 1, ink jet heads 22 having a plurality of nozzle 27 are disposed in a linear manner. Filter element member is ejected to a motherboard 12 from a plurality of nozzles 27 four times so as to form the filter element 3 in a predetermined thickness. By doing this, it is possible to prevent difference in the thickness in a plurality of the filter elements 3 and to equalize light transparency in planar manner. Thus, in an ejecting apparatus, a color filter can be formed in more common way at low cost and more efficiently. Also, it is possible to provide an ejecting apparatus which can equalize factors such as electrooptical characteristics of the electrooptical members, color displaying characteristics by the liquid crystal apparatuses, and illuminating characteristics by an EL surface.

Abstract: In an ink jet apparatus for manufacturing a color filter 1, ink jet heads 22 having a plurality of nozzle 27 are disposed in a linear manner. Filter element member is ejected to a motherboard 12 from a plurality of nozzles 27 four times so as to form the filter element 3 in a predetermined thickness. By doing this, it is possible to prevent difference in the thickness in a plurality of the filter elements 3 and to equalize light transparency in planar manner. Thus, in an ejecting apparatus, a color filter can be formed in more common way at low cost and more efficiently. Also, it is possible to provide an ejecting apparatus which can equalize factors such as electrooptical characteristics of the electrooptical members, color displaying characteristics by the liquid crystal apparatuses, and illuminating characteristics by an EL surface.

Abstract: In an ink jet apparatus for manufacturing a color filter 1, ink jet heads 22 having a plurality of nozzle 27 are disposed in a linear manner. Filter element member is ejected to a motherboard 12 from a plurality of nozzles 27 four times so as to form the filter element 3 in a predetermined thickness. By doing this, it is possible to prevent difference in the thickness in a plurality of the filter elements 3 and to equalize light transparency in planar manner. Thus, in an ejecting apparatus, a color filter can be formed in more common way at low cost and more efficiently. Also, it is possible to provide an ejecting apparatus which can equalize factors such as electrooptical characteristics of the electrooptical members, color displaying characteristics by the liquid crystal apparatuses, and illuminating characteristics by an EL surface.

Abstract: A piezoelectric vibrator unit comprises: at least one piezoelectric vibrator including: common internal electrode layers and segment internal electrode layers arranged alternately; piezoelectric layers, each interposed between adjacent pair of the common and segment internal electrode layers; and external electrodes formed on an exterior of the piezoelectric vibrator and electrically connected respectively to the common internal electrode layers and the segment internal electrode layers; and a fixing member to which a surface of the piezoelectric vibrator is fixed. The piezoelectric vibrator is displaceable in a direction perpendicular to a lamination direction in which the internal electrode layers and piezoelectric layers are laminated. The magnitude of electric fields applied to the piezoelectric layers is non-uniform.

Abstract: First internal electrode layers and second internal electrode layers are alternately laminated in a substrate while sandwiching piezoelectric layers therebetween. The first internal electrode layers are exposed to at least a first end face of the substrate, and the second internal electrode layers are exposed to at least a second end face of the substrate which is opposite to the first end face. A first external electrode layer is formed on the first end face and a third end face connecting the first end face and the second end face. The first external electrode layer is electrically connected to the first internal electrode layers. A second external electrode layer is formed on at least the second end face and the third end face. The second external electrode layer is electrically connected to the second internal electrode layers, and is electrically independent from the first external electrode layer.

Abstract: The present invention relates to a method of manufacturing a piezoelectric vibration element unit used for an inkjet recording head. The method includes the steps of alternately laminating conductive layers and piezoelectric material layers, sintering a laminated structure after the conductive layers and the piezoelectric layers are laminated to a predetermined thickness, forming external connection electrodes on surfaces of the sintered structure, and fixing a non-vibration region of the sintered structure onto a fixing plate. A region of the structure where the conductive layers are formed is cut into drive piezoelectric vibration elements, and a region of the structure where the conductive layers are not formed is cut into a dummy piezoelectric element.

Abstract: In an ink jet apparatus for manufacturing a color filter 1, ink jet heads 22 having a plurality of nozzle 27 are disposed in a linear manner. Filter element member is ejected to a motherboard 12 from a plurality of nozzles 27 four times so as to form the filter element 3 in a predetermined thickness. By doing this, it is possible to prevent difference in the thickness in a plurality of the filter elements 3 and to equalize light transparency in planar manner. Thus, in an ejecting apparatus, a color filter can be formed in more common way at low cost and more efficiently. Also, it is possible to provide an ejecting apparatus which can equalize factors such as electrooptical characteristics of the electrooptical members, color displaying characteristics by the liquid crystal apparatuses, and illuminating characteristics by an EL surface.

Abstract: A nozzle plate of the invention has nozzle opening including a taper part 2 for guiding ink in a pressure generation chamber and a straight pore part 3 formed contiguous with the taper part.

Abstract: A liquid jetting head includes a plurality of nozzle orifices, a plurality of pressure generation chambers associated with the nozzle orifices, and a plurality of piezoelectric vibrators for respectively varying the volume of the associated pressure generation chamber to jet a liquid droplet from the associated nozzle orifice. A drive signal generator generates a plurality of drive signals, respectively driving the piezoelectric vibrators, within a single jetting cycle of the liquid jetting head. An ID data storage stores ID data which identifies the respective nozzle orifices. A correction data storage stores correction data which corrects the amount of liquid jetted from the nozzle orifice.

Abstract: An ink jet recording head has an ink passage unit formed by superposing a nozzle plate with a plurality of nozzles and an ink passage plate. The ink passage plate has a plurality of pressure producing chambers connected to the nozzles, and an ink reservoir communicating with the pressure producing chambers by ink inlet ports. A cover plate is joined to a first surface of the ink passage plate. The cover plate is deformed elastically by piezoelectric vibrators so as to apply pressure to the ink contained in the pressure producing chambers.

Abstract: A method of producing an ink jet recording head, which includes (1) fixing a passage unit in which a nozzle pate having a nozzle opening, a spacer forming a common ink chamber, and an elastic plate having a thick portion abutting against an end of a piezoelectric vibrating element are stacked, to an opening of a frame having an overhang portion which overhangs to a vicinity of the thick portion, (2) inserting a vibrating element unit into the frame, the vibrating element unit being configured by fixing piezoelectric vibrating elements operating in a longitudinal vibration mode to a fixing substrate, and (3) injecting an adhesive into a groove formed in a region opposing the fixing substrate of the frame.

Abstract: First internal electrode layers and second internal electrode layers are alternately laminated in a substrate while sandwiching piezoelectric material layer therebetween. The first internal electrode layers are exposed to a first end face of the substrate, and the second internal electrode layers are exposed to a second end face of the substrate which is opposite to the first end face. A first external electrode layer is formed on the first end face and a third end face connecting the first end face and the second end face. A second external electrode layer is formed on the second end face and the third end face. The second external electrode layer is electrically independent from the first external electrode layer. The first external electrode layer and the first internal electrode layers are to be divided by slits extending from the first end face to form a plurality of piezoelectric elements arrayed in a first direction.

Abstract: Common internal electrodes 27 and segment internal electrodes 28 are laminated alternately with a piezoelectric material 29 between and a common external electrode 30 and a segment external electrode 31 are provided on the surface, forming a drive vibrator 24. A free end part 24a of the drive vibrator 24 is formed with an active region L and can be expanded and contracted in the length direction of the vibrator. A piezoelectric material 29 of the outermost layer in the free end part 24a can be operated based on the potential difference between the external and internal electrodes and a portion of the active region L in the external electrode is used as a trimming portion with an effective length x varied by trimming.