Patent application number | Description | Published |
20080239018 | LIQUID TRANSPORT APPARATUS AND METHOD FOR PRODUCING LIQUID TRANSPORT APPARATUS - A method for producing a liquid transport apparatus comprises positioning and joining a vibration plate formed with recesses and a flow passage unit formed with pressure chambers, detecting a positional deviation amount of the recess from a reference position in a predetermined direction, and forming an electrode having a length adjusted on the basis of the detected positional deviation amount. Accordingly, it is possible to avoid the decrease in the pressure to be applied in the pressure chamber. Further, it is possible to appropriately discharge a liquid such as an ink or the like from a discharge port. | 10-02-2008 |
20090053402 | Method of manufacturing piezoelectric actuator and method of manufacturing liquid transporting apparatus - A recess is formed on an upper surface of a vibration plate at a position corresponding to a pressure chamber. Next, a low-elasticity material having a lower modulus of elasticity than the vibration plate is filled in the recess. Then, aerosol including a piezoelectric material particles and carrier gas is sprayed on the upper surface of the vibration plate to form a piezoelectric layer. At this time, the particles of the piezoelectric material do not adhere to a surface of the low-elasticity material filled in the recess, and hence the piezoelectric layer can be formed only in an area excluding the surface of the low-elasticity material. Thus, there is provided a method of manufacturing a piezoelectric actuator, the method capable of easily preventing, when forming the piezoelectric layer by an aerosol deposition method, formation of the piezoelectric layer on a surface of the recess. | 02-26-2009 |
20090085435 | Liquid transport apparatus, liquid transport head, and piezoelectric actuator - A liquid transport apparatus includes: a channel unit; a piezoelectric actuator which applies a pressure to a liquid in a pressure chamber and which has a first and a second piezoelectric layers, a first, a second, and a third electrodes, the first piezoelectric layer covering the pressure chamber and polarized in a thickness direction, the second piezoelectric layer being joined to a surface of the first piezoelectric layer and polarized in a thickness direction, the first electrode being formed on a surface of the first piezoelectric layer, the second electrode being formed on a surface of the second piezoelectric layer, the third electrode being formed between the first piezoelectric layer and the second piezoelectric layer; a driving mechanism which drives the piezoelectric actuator and which has a potential applying mechanism applying potentials to the first, second, and third electrode respectively, and a controller controlling the potential applying mechanism. | 04-02-2009 |
20090085988 | Liquid transporting apparatus and piezoelectric actuator - A liquid transporting apparatus includes a piezoelectric actuator which applies a pressure to liquid in a pressure chamber and which has a vibration plate covering the pressure chamber; a piezoelectric layer formed on a surface, of the vibration plate, not facing the pressure chamber; an electrode formed on a surface of the piezoelectric layer not facing the vibration plate at a portion facing the pressure chamber; a contact point formed on the surface of the piezoelectric layer not facing the vibration plate; and a connecting portion formed on the surface of the piezoelectric layer not facing the vibration plate and connecting the electrode and the contact point; and the connecting portion extends from the contact point and is connected to a portion, of the electrode, which is different from a nearest portion nearest to the contact point. | 04-02-2009 |
20090096844 | Liquid-droplet jetting apparatus and liquid-droplet jetting head - A piezoelectric actuator includes first active portions corresponding to center portions in a row direction of pressure chambers and second active portions corresponding to left and right portions on outer peripheral sides which are more outside than the center portions of the pressure chambers. When applying voltage to the first active portions, the first active portions deform to project toward pressure chambers. At this time, the second active portions do not deform and the influence of deformation of the first active portions does not reach the adjacent pressure chambers. Accordingly, effect of suppressing crosstalk is exhibited. | 04-16-2009 |
20090244129 | LIQUID DROPLET JETTING APPARATUS - In a liquid droplet jetting mode of jetting liquid droplets, a controller controls a piezoelectric actuator to perform a liquid droplet jetting operation in which volume of a pressure chamber is decreased to a decreased volume smaller than a predetermined volume, and then the volume of the pressure chamber is increased to an increased volume greater than the predetermined volume, and the volume of the pressure chamber is again decreased to the decreased volume. On the other hand, in a warm-up mode of heating the liquid in the pressure chamber, the controller controls the piezoelectric actuator to perform at least one of a first warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the increased volume, and a second warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the decreased volume. | 10-01-2009 |
20090244204 | LIQUID DROPLET JETTING APPARATUS AND LIQUID DROPLET JETTING HEAD - A piezoelectric actuator includes piezoelectric material layers, individual electrodes corresponding to pressure chambers, a first common constant electric potential electrode corresponding to outer peripheral portions of the pressure chambers, and a second common constant electric potential electrode corresponding to central portions of the individual electrodes. A plurality of first active portions is formed in areas of the piezoelectric material layers sandwiched between the individual electrodes and the second common constant electric potential electrode, and a plurality of second active portions is formed in areas of the piezoelectric material layers sandwiched between the individual electrodes and the first common constant electric potential electrode. Since the second common constant electric potential electrode has a mesh-shaped form, it is possible to reduce an impedance thereof. | 10-01-2009 |
20100223768 | METHOD OF MANUFACTURING LIQUID TRANSPORTING APPARATUS - There is provided a method of manufacturing liquid transporting apparatus including: providing a channel unit; providing a piezoelectric actuator having a first and second active portion corresponding to a central portion and an outer periphery portion of the pressure chamber, respectively. The first and second active portions are sandwiched between an upper electrode and an intermediate electrode, and between the upper electrode and a lower electrode, respectively. The method further includes joining the channel unit and the piezoelectric actuator by positioning such that the intermediate electrode overlaps the central portion of the pressure chamber. Accordingly, since it is possible to make the first active portion overlap the central portion of the pressure chamber, it is possible to apply a appropriate pressure to the liquid in the pressure chamber without excessively small deformation of the first active portion. | 09-09-2010 |
20110074885 | DROPLET EJECTING APPARATUS - A droplet ejecting apparatus, including: a head having a cavity unit with pressure chambers and a piezoelectric actuator; and a voltage application device, the actuator including: first and second active portions; a first potential electrode; a second potential electrode including a second trunk portion; and individual electrodes each having a connection portion, wherein the connection portion is disposed to overlap the second trunk portion as seen in a superposition direction of the cavity unit and the actuator, wherein the individual electrodes are arranged in rows to correspond to rows of the pressure chambers, and all connecting portions belonging to any one row are disposed on the same side in a direction of arrangement of the rows, and wherein the connecting portions of the individual electrodes that belong to one and the other of any adjacent two rows are disposed on mutually opposite sides with respect to the corresponding pressure chambers. | 03-31-2011 |
20150048721 | PIEZOELECTRIC ACTUATOR AND METHOD OF MANUFACTURING PIEZOELECTRIC ACTUATOR - A piezoelectric actuator includes one piezoelectric layer, a common electrode disposed on the lower surface of the piezoelectric layer and individual electrodes disposed on the upper surface of the piezoelectric layer. In the piezoelectric layer, a plurality of metal patterns arranged at regular intervals in the conveyance direction and in a direction orthogonal to the conveyance direction and overlapping with pressure chambers are provided substantially at the central part in the direction of the thickness. The metal patterns are not electrically continuous with each other and not electrically continuous with other parts. The metal patterns situated outermost in the conveyance direction are disposed so as to cross the edge of the pressure chamber. Some metal patterns overlap with the individual electrode and the other metal patterns do not overlap with the individual electrode. | 02-19-2015 |
Patent application number | Description | Published |
20080318072 | Imide Resin, Production Method of Imide Resin, and Usage of Imide Resin - To realize an imide resin which is favorable in optical use. | 12-25-2008 |
20100165275 | OPTICAL ELEMENT, DISPLAY DEVICE, AND OPTICAL DEVICE - A retardation film includes a plurality of unit areas in a direction parallel to a light-incident plane of the optical element, and the unit areas includes a plurality of unit areas | 07-01-2010 |
20100188697 | IMAGE FORMING APPARATUS AND DISPLAY METHOD USING OPERATION DISPLAY PORTION THEREOF - An image forming apparatus includes: a communication portion; an operation display portion that displays at least an address book screen on which a plurality of first input keys for narrowing transmission destination information are displayed, on which the first input key is operated such that a plurality of second input keys for further narrowing the transmission destination information are displayed and on which the displayed second input key is operated such that the transmission destination information is narrowed and the resulting information is displayed along with names; a display control portion that controls a display on the operation display portion; a key operation detection portion that detects a key operation on the input keys including the first input keys and the second input keys; and a storage portion that stores a plurality of pieces of transmission destination information displayed on the address book screen such that the plurality of pieces of transmission destination information correspond to names, respectively. | 07-29-2010 |
20110078631 | DISPLAY DEVICE, AND IMAGE FORMING APPARATUS AND ELECTRONIC DEVICE LOADED THEREWITH - A display device includes: an operation display part having a touch panel part displaying on a screen a plurality of input keys and accepting key operation, the operation display part displaying a list with an array of a plurality of items; a key operation detection part detecting operation on the input key; and a control part specifying the operated input key based on information from the key operation detection part, and displaying, at the operation display part in two rows or two columns, an array of: a plurality of first input keys arrayed for narrowing down the items to be displayed on the list; and a plurality of second input keys displayed as a result of operation of the first input key and arrayed for further narrowing down the items to be displayed on the list. | 03-31-2011 |
20130003099 | OPERATION APPARATUS, IMAGE FORMING APPARATUS PROVIDED WITH THE SAME, AND SHORTCUT ACCEPTANCE METHOD - An operation apparatus includes a touch panel, a help unit, a shortcut inquiry unit, and a shortcut acceptance unit. The shortcut inquiry unit, upon detection, by the touch panel, of an input operation of the setting condition in a state in which the setting condition input window, which has been switched by the help unit, is being displayed, inquires about whether registration of a shortcut key used for directly switching to the setting condition input window corresponding to the setting item is desired or not, and accepts the registration of the shortcut key used for directly switching to the setting condition input window corresponding to the setting item, if the input operation for registration of the shortcut key is accepted by way of the touch panel. | 01-03-2013 |
20130265252 | DISPLAY/INPUT DEVICE AND IMAGE FORMING APPARATUS INCLUDING DISPLAY/INPUT DEVICE - A display/input device includes a display section, a touch panel, and a control section. The display section displays an image. The touch panel detects touch with a display surface of the display section. When the touch panel detects touch of two points of which a positional relationship indicates a first direction, the control section allows the display section to display a plurality of images in a second direction different from the first direction. The control section changes a selected state of an image of the plurality of images according to move of one of the two points. | 10-10-2013 |
20130271402 | DISPLAY INPUT DEVICE, AND IMAGE FORMING APPARATUS INCLUDING TOUCH PANEL PORTION - A display input device includes a display portion and a touch panel portion. The display portion displays a screen having an object thereon. The touch panel portion is provided on the display portion and detects a plurality of touched positions touched by a user. The display portion, while displaying the screen having the object thereon, when an operation of touching two points on the touch panel portion has been performed, displays transfer destination information indicating a transfer destination candidate that can be a transfer destination of the object. The touch panel portion, when an object transfer operation including an operation of touching a display position of the transfer destination information and then releasing the touched state has been performed, accepts that the transfer destination candidate corresponding to the transfer destination information displayed at the last touched position has been determined as an actual transfer destination of the object. | 10-17-2013 |
20130275898 | DISPLAY INPUT DEVICE AND IMAGE FORMING APPARATUS HAVING TOUCH PANEL - A display input device includes a display portion, a touch panel portion, and a determination portion. The display portion displays a screen and an image, and displays a plurality of objects as images whose display positions are movable. The touch panel portion is provided for the display portion, and accepts a user's input, and detects a plurality of positions being touched. The determination portion determines whether two points being touched are in the vertical direction or the horizontal direction. The touch panel portion accepts an input of selecting, as selected objects, some or all of the objects displayed on the display portion. When the touch panel portion has detected that two-point touching has been performed thereon in the state where the objects are selected, the display portion aligns the display positions of the selected objects, based on the direction of the touched two points and movement of the touched points. | 10-17-2013 |
20140029048 | DESTINATION-TO-SAVE-DATA SPECIFYING SYSTEM, INFORMATION PROCESSING APPARATUS, COMPUTER-READABLE NON-TRANSITORY STORAGE MEDIUM WITH DESTINATION-TO-SAVE-DATA SPECIFYING PROGRAM STORED THEREON, AND IMAGE FORMING APPARATUS - A destination-to-save-data specifying system includes a computer and an image forming apparatus. In the computer, when a user interface section accepts an operator's destination-to-save-data specifying command for a folder on the computer, an accompanying information management section acquires accompanying information, including a path name, from the folder and allows a communication section to transmit the acquired accompanying information to the image forming apparatus. In the image forming apparatus, a destination-to-save-data specifying section uses the accompanying information received by the accompanying information receiving section to specify the folder identified by the accompanying information as a destination to save data output from the image forming apparatus. | 01-30-2014 |