Abstract: An IC card includes a data receiving unit which receives a terminal authentication list and a receiving apparatus ID from a memory unit of a receiving apparatus, a first determination unit which obtains a first determination result by determining, with reference to first discrimination information, whether the terminal authentication list is an invalid terminal list or a valid terminal list, a second determination unit which obtains a second determination result by determining whether the receiving apparatus ID is included in the terminal authentication list, and a reply unit which returns to the receiving apparatus a response signal indicative of whether the receiving apparatus is the valid terminal or not, in accordance with contents of the first determination result and the second determination result.

Abstract: An air intake apparatus configured to combine air filtered separately through a plurality of air cleaners and lead it to a single throttle body suppresses or prevents variation in the pressure of airflow introduced from a plurality of intake paths to the single throttle body. Outside air is introduced to the plurality of air cleaners by a single air cleaner inlet. The air cleaner inlet has a chamber of a predetermined capacity which has a single intake duct, and a plurality of branching passages which branch off from the chamber into the same number as there are air cleaners and are connected to the separate air cleaners.

Abstract: An MgO layer (8) including an MgO crystal causing a cathode-luminescence emission having a peak within a range from 230 nm to 250 nm upon being excited by electron beams is provided in a position facing a discharge cell (C) formed in the discharge space between the front glass substrate (1) and the back glass substrate (4).

Abstract: A head main body includes a passage unit having nozzles and pressure chambers, and an actuator unit adhered to the passage unit to change the volume of the pressure chambers. On a piezoelectric sheet of the actuator unit, formed are not only individual electrodes corresponding to the respective pressure chambers, but also a land and a dummy land in a pair corresponding to each of the individual electrodes. The land is connected to the individual electrode, and the dummy land is spaced from the individual electrode. The land and the dummy land have substantially the same height from a surface of the piezoelectric sheet, which is higher than that of the individual electrodes. The individual electrodes are connected, through the land, to a cable member to supply a drive signal to the actuator unit.

Abstract: Pressure chambers arranged in the form of a matrix along a plane form first and second pressure chamber columns arranged alternately in the plane and having nozzles connected on opposite sides respectively. Two adjacent pressure chamber columns constituted by a first pressure chamber column and a second pressure chamber column are arranged opposite to each common ink path. First connection holes formed in the pressure chambers of the first pressure chamber column and connected to nozzles and second connection holes formed in the pressure chambers of the second pressure chamber column and connected to nozzles are arranged side by side on opposite sides of a corresponding common ink path. Between two adjacent common ink paths, first connection holes and second connection holes are arranged on a column.

Abstract: An inkjet printer whose ink discharge characteristic will rarely change even when used for a long period of time is developed. The inkjet printer has a pressure chamber and a piezoelectric actuator and a controller. The piezoelectric actuator has a piezoelectric film, a first electrode, a second electrode and a third electrode. The piezoelectric actuator forms a portion of the wall defining the pressure chanter. The first electrode is attached on the surface of the piezoelectric film and is positioned in the region facing the pressure chamber. The third electrode is attached on the surface of the piezoelectric film and is positioned adjacent to the first electrode. The third electrode is attached on the other surface of the piezoelectric film and is overlapping with the first and third electrode.

Abstract: An inkjet printer whose ink discharge characteristics will rarely change even when used for a long period of time is developed. The inkjet printer has a pressure chamber, a piezoelectric actuator forming a wall of the pressure chamber and a controller for applying voltage to the piezoelectric actuator. The controller applies a predetermined voltage in general, and the piezoelectric actuator is usually deformed to project toward the pressure chamber. Ink discharge signal comprises an advanced voltage change from the predetermined voltage to zero and a subsequent change from zero to the predetermined voltage. The characteristics of the piezoelectric actuator will change if the piezoelectric actuator is continuously deformed during ink non-discharge period. The controller applies an additional signal including an advanced change from the predetermined voltage to a lower voltage and a subsequent change from the lower voltage to the predetermined voltage.

Abstract: An inkjet printer whose ink discharge characteristic will rarely change even when used for a long period of time is developed. The inkjet printer has a pressure chamber and a piezoelectric actuator and a controller. The piezoelectric actuator has a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode, and they are laminated together in this order. The piezoelectric actuator forms a portion of the wall defining the pressure chanter. The controller applies ink discharge signal between the first and second electrode, ink discharge signal comprises advanced voltage change from a predetermined voltage to the lower voltage and subsequent voltage change from the lower voltage to the predetermined voltage. Ink can be effectively discharged by applying the ink discharge signal, but the ink discharge signal could change piezoelectric characteristic in the second piezoelectric film due to the deformation of the first piezoelectric film.

Abstract: A crystalline magnesium oxide layer, including magnesium oxide crystals causing a cathode-luminescence emission having a peak within a wavelength range of 200 nm to 300 nm upon excitation by an electron beam, is provided between the front glass substrate and the back glass substrate, facing the discharge cells. The phosphor layer of any one of red, green and blue colors has a discharge timing adjusting function for giving rise to an approximate match between a timing of a discharge initiated in the green discharge cell and a timing of a discharge initiated in the red or blue discharge cell.

Abstract: A method for bonding metallic plates includes: sandwiching a laminated body, which includes a plurality of metallic plates and is formed with an inner cavity opening on a surface thereof, between a pair of jigs each having a flat abutment surface abutting against respective surfaces of the laminated body, wherein at least one of the jigs is formed with an atmosphere communication path, which communicates with the inner cavity and atmosphere; and heating the laminated body while applying pressure to the laminated body with the pair of jigs in a lamination direction of the laminated body.

Abstract: An inkjet head includes a flow-path unit, a reservoir unit and an actuator unit. The flow-path unit includes a common ink chamber and plural individual ink flow paths. The actuator unit includes plural first electrodes and a second electrode. The first electrodes are arranged to correspond to pressure chambers, respectively. The first electrodes are fed selectively with respective drive voltages for varying a volume of the pressure chambers. One of the flow-path unit and the reservoir unit includes a first metal portion, and the other includes a second metal portion. The metal portion of the flow-path unit and the second electrode are electrically connected with each other. The first metal portion and the second metal portion are jointed to each other through an insulating material layer. An electric connection portion, which is in direct contact with the second metal portion, is integrated with the first metal portion.

Abstract: A ring-shaped packing is fitted into a annular groove surrounding an aperture through which ink is supplied to a head unit, and a sealant is filled around the packing. By bringing the packing into contact with the surface of a filter covering a supply hole and by pressing the head unit, the sealant makes intimate contact with the head unit while the end of the packing is kept in intimate contact with the filter, thereby sealing the supply hole. Then a frame and the head unit are bonded to each other using an UV adhesive.

Abstract: A reproducing apparatus has a communication unit which receives distribution of contents from a server device via a network, a decoding unit, a reproducing unit, and a control unit which controls to when encrypting and distributing divided contents of the contents from plural modules owned by each of plural server units owned by the server device, distribute distribution information showing each one of the divided contents to be supplied from which one of plural module units in the plural server units, plural decoding keys depending on each module unit of each server unit, and plural divided contents individually encrypted by the plural decoding keys, from the server device via the communication unit, to decode the plural divided contents by the decoding unit on the basis of the distribution information and plural decoding keys, and to reproduce the decoded contents.

Abstract: An intake pipe includes a plurality of passages that join in a section upstream of the throttle body. The intake pipe includes an interference prevention member that prevents air passing through a specific one of the passages from flowing into the other passages. The interference prevention member is a thin plate and is formed in a confluence portion of an adjacent pair of the passages.

Abstract: An inkjet head includes a cavity unit and a piezoelectric unit stacked on the cavity unit. The cavity unit has a plurality of ink pressure chambers and a plurality of nozzles being in fluid communication with respective ones of the ink pressure chambers. The piezoelectric unit includes a laminate of four piezoelectric layers and two common electrodes. The piezoelectric unit is provided with a plurality of driving electrodes formed on a top face thereof at positions corresponding to respective ones of the pressure chambers. One of the common electrodes is provided between the upper most piezoelectric layer and the piezoelectric layer immediately therebelow so as to extend substantially over the whole area defined between those two piezoelectric layers. The other common electrode is located between the lower most piezoelectric layer and the piezoelectric layer immediately thereabove so as to extend substantially over the whole area defined therebetween.

Abstract: An ink-jet head has a passage unit including a plurality of pressure chambers each having one end connected with a nozzle and another end connected with an ink supply source. Each of the pressure chambers is confined in each of a plurality of parallelogram regions and has an elliptical planar shape with no corner bulging in a direction to leave a line joining the one end and the another end in each of the pressure chambers, in a plane of the passage unit where the pressure chambers are arranged. The planar shape of the pressure chamber is slender along a longer diagonal line of a rhombic region, and a direction of the longer diagonal line of a rhombic region and a direction of a direction joining the one end and the other end in each of the pressure chambers are substantially coincident with each other.

Abstract: A line-type ink-jet recording apparatus includes a conveyance mechanism, a passage unit, a plurality of actuators, and an actuator controller. The actuator controller supplies an ejection signal to each of the actuators so that ink is ejected from n ejection openings communicating with a same one of the common ink chambers at m different timings within one printing cycle and that ink is ejected from each of the n ejection openings at two or more different timings among the m timings within a printing period including two or more of the printing cycles.

Abstract: A plasma display panel has a front glass substrate and a back glass substrate facing each other on either side of a discharge space, row electrode pairs formed on the rear-facing face of the front glass substrate, and a dielectric layer covering the row electrode pairs. Discharge cells are formed in the discharge space. The PDP further has crystalline MgO layers each provided on a part of portion of the face of the front glass substrate having the row electrode pairs formed thereon and facing toward the discharge space. The crystalline MgO layers include magnesium oxide crystals causing a cathode-luminescence emission having a peak within a wavelength range of 200 nm to 300 nm upon excitation by an electron beam.