Abstract: An ink-jet head according to the invention includes a passage unit in which a plurality of pressure chambers, each having one end connected with a nozzle for ejecting ink and the other end to be connected with an ink supply source, are arranged along a plane neighboring each other, and an actuator unit arranged at a surface of the passage unit for changing the volume of each of the pressure chambers. Further, the ink-jet head includes a flexible printed circuit having signal lines electrically connected to the actuator unit, each signal line supplying a drive signal for changing the volume of the pressure chamber, a support member for supporting the head unit, and a seal member arranged between support member and the passage unit. Further, the flexible printed circuit is fixed to the support member and the passage unit by the seal member.

Abstract: An inkjet head is provided with a plurality of pressure chambers, each of which is configured such that an end thereof is connected to a discharging nozzle and the other end is connected to an ink supplier, and an actuator unit for the plurality of pressure chambers. The actuator unit is formed to be a continuous planar layer including at least one inactive layer arranged on a pressure chamber side and at least one active layer arranged on a side opposite to the pressure chamber side with respect to the inactive layer, the planar layer covering the plurality of pressure chambers. The at least one active layer is sandwiched between a common electrode and a plurality of driving electrodes arranged at positions corresponding to the plurality of pressure chambers. The continuous planar layer includes a plurality of active layers or a plurality of inactive layers.

Abstract: An ink-jet head includes a passage unit including a plurality of pressure chambers each connected with a nozzle and arranged in a matrix in a plane to form a plurality of pressure chamber rows in a first direction in the plane, and a plurality of common ink passages each extending along the first direction and communicating with the pressure chambers.

Abstract: An inkjet head includes a cavity plate having a plurality of pressure chambers arranged in matrix, a piezoelectric sheet laminated on the cavity plate, and a power supply board. A plurality of substantially rhombus driving electrodes are formed on the piezoelectric sheet in a matrix at positions corresponding to the pressure chambers. A first contact land extends from one of the acute angle corners of each driving electrode. The driving electrodes are arranged such that the first contact land extending from one driving electrode is placed between two driving electrodes adjacent to said one driving electrode. The power supply board has a plurality of second contact lands formed at positions corresponding to the first contact lands. The second contact lands are connected with respective ones of the first contact lands for power supply.

Abstract: The present invention provides a reaction apparatus which is used for gas-liquid chemical reaction and is capable of producing a target reaction product. The present invention provide a reaction apparatus for conducting a gas-liquid chemical reaction in the state that a liquid is in a continuous phase,wherein its reactor has therein a shear type stirring impeller for dispersing a raw reaction gas or a carrier gas and a film-formed catalyst; and a process for producing a tertiary amine. This reaction apparatus is preferably used to react a primary or secondary amine with an alcohol.

Abstract: A method for manufacturing an ink-jet head, including forming a mark for indicating the positions of pressure chambers on a surface of a passage unit; preparing a member containing a piezoelectric sheet on which a common electrode is supported; attaching the member to the surface of the passage unit; and forming individual electrodes, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.

Abstract: A plasma display device having a plasma display panel in which, each display cell contains a magnesium oxide layer including magnesium oxide crystals that are excited by an electron beam to emit cathode luminescence light having a peak in a wavelength range of 200 to 300 nm. In an addressing period, a row electrode driving circuit applies a scanning pulse to one row electrodes of row electrode pairs in turn, while a column electrode driving circuit supplies column electrodes with data pulses corresponding to one row electrode which is applied with the scanning pulse.

Abstract: There are provided a plasma display device in which dark contrast can be enhanced without deteriorating an image quality and a method of driving a plasma display panel. In a case of driving a plasma display device in which a magnesium oxide layer containing a magnesium oxide crystal to be excited by the irradiation of an electron beam and performing a cathode luminescence having a peak in a wavelength range of 200 to 300 nm by a sub-field method, in order to initialize all display cells, reset discharge is caused in each of the display cells in M sub-fields of N consecutive sub-fields (0<M<N).

Abstract: The liquid discharge device of the present invention comprises a piezoelectric actuator 11 and a flow passage member 21. The piezoelectric actuator 11 has a plurality of driving electrodes 15 formed on a piezoelectric ceramic layer 14, and a plurality of piezoelectric displacement elements 16 disposed longitudinally and laterally with regularity. In the flow passage member 21, a plurality of liquid compressing chambers 23 are formed with liquid outlet orifices 22. The piezoelectric actuator 11 is placed on the flow passage member 21, so that the driving electrodes 15 correspond in position to the liquid compressing chambers 23. A plurality of piezoelectric displacement elements 16 are disposed longitudinally in N lines (N?4) and have dot density of not less than 300 dpi in lateral direction. The ratio (B/A) of arrangement interval B between the driving electrodes 15 in longitudinal direction to arrangement interval A between the driving electrodes 15 in lateral direction is 0.95 to 1.5.

Abstract: A plasma display apparatus and a driving method of a plasma display panel which can improve a gradation expressing ability at low luminance. A magnesium oxide layer containing a magnesium oxide crystal which is excited by irradiation of an electron beam and performs a cathode luminescence light emission having a peak in a wavelength range of 200 to 300 nanometers is provided in each of display cells formed on the plasma display panel. When driving for a plurality of subfields having different luminance weights is performed, a sustaining discharge is caused only once in the subfield having the minimum luminance weight.

Abstract: A plasma display device and a method of driving a plasma display panel are provided for improving the contrast without degrading the image quality. Each of display cells formed on the plasma display panel has a magnesium oxide layer containing magnesium oxide crystals. The magnesium oxide crystals are excited by an electron beam irradiated thereto and emit cathode luminescence light having a peak in a wavelength range of 200 to 300 nm. In order to trigger a rest discharge in all the display cells, each row electrode pair of the plasma display panel is applied with a reset pulse which has a particular pulse waveform. The voltage value of this reset pulse slowly changes over time to reach a peak voltage value.

Abstract: An ink-jet head having a passage unit including pressure chambers each having one end coupled to a nozzle and the other end to be coupled to an ink supply source. The pressure chambers are arranged along a plane to neighbor each other. The ink-jet head further includes actuator units attached to a surface of the passage unit for changing the volume of each pressure chamber. Each actuator unit includes pressure generation portions respectively corresponding to pressure chambers, and is formed to extend over the pressure chambers. The actuator units are arranged along the longitudinal direction of the passage unit so that each neighboring actuator units partially overlap each other in the lateral direction of the passage unit. Each actuator unit has a basic region where many pressure generation portions are formed in a matrix, and an additional region neighboring the basic region in the lateral direction of the passage unit.

Abstract: An ink-jet head having a passage unit including pressure chambers each having one end coupled to a nozzle and the other end to be coupled to an ink supply source. The pressure chambers are arranged along a plane to neighbor each other. The ink-jet head further includes actuator units attached to a surface of the passage unit for changing the volume of each pressure chamber. Each actuator unit includes pressure generation portions respectively corresponding to pressure chambers, and is formed to extend over the pressure chambers. The actuator units are arranged along the longitudinal direction of the passage unit so that each neighboring actuator units partially overlap each other in the lateral direction of the passage unit. Each actuator unit has a basic region where many pressure generation portions are formed in a matrix, and an additional region neighboring the basic region in the lateral direction of the passage unit.

Abstract: A crystalline MgO layer is provided in a position facing a discharge cell formed in a discharge space between the front and back substrates. The crystalline MgO layer includes magnesium oxide crystals caused to emit ultraviolet light with a peak wavelength of between 230 nm and 250 nm by the action of ultraviolet light emitted from xenon in a discharge gas. A phosphor layer emits visible light by being excited by the ultraviolet light emitted from the magnesium oxide layer and the ultraviolet light emitted from the discharge gas.

Abstract: An ink-jet head includes a passage unit including a nozzle plate unit having a nozzle plate in which nozzles are formed, and a main unit fixed on the nozzle plate unit in a laminating direction and having a plurality of pressure chambers, each of the plurality of pressure chambers having one end connected with a nozzle and an other end connected with an ink supply source, the plurality of pressure chambers arranged along a plane to neighbor each other, and an actuator unit, fixed on a side of the main unit opposite to a side in which the main unit is fixed on the nozzle plate unit, for changing the volume of each of said pressure chambers.

Abstract: A method for manufacturing an ink-jet head, including forming a mark for indicating the positions of pressure chambers on a surface of a passage unit; preparing a member containing a piezoelectric sheet on which a common electrode is supported; attaching the member to the surface of the passage unit; and forming individual electrodes, based on the mark, on a face of the member facing the direction opposite to the attached face thereof to the passage unit.

Abstract: A method for manufacturing an inkjet head includes producing a flow path unit, producing an actuator unit, bonding the actuator unit with the flow path unit to produce a bonded structure; measuring a frequency characteristic of impedance of the piezoelectric structure of the bonded structure in each of regions facing at least one of the pressure chambers, and determining whether or not the bonded structure is a good product on a basis of at least one of a distribution of (Fa?Fr) in the plural regions where Fa represents antiresonance frequency of each region at which impedance of each region are maximal and Fr represents resonance frequency of each region at which impedance of each region is minimal, a distribution of Fr in the plural regions, and a distribution of Zr in the plural regions, where Zr represents impedance of each region at the resonance frequency of each region.

Abstract: An inkjet printer has a reservoir unit including an ink supply port to which ink is supplied from the outside and an ink reservoir for storing the ink supplied from the ink supply port. Further, the inkjet printer has an air purging passage branched off from an area of an ink supply flow passage extending from the ink supply port to a manifold via the ink reservoir. The area is located downstream with respect to a filter; and an air purging valve capable of opening or closing the air purging passage. The air in the ink supply passage can be readily purged from the air purging passage.

Abstract: An ink-jet head according to the invention includes a passage unit including a plurality of pressure chambers one end of each of which is connected to a nozzle and the other end of which is to be connected to an ink supply source, and actuator unit for changing the volume of each of the pressure chambers. The actuator unit includes a common electrode maintained at a constant potential, a plurality of individual electrodes arranged at positions corresponding to each pressure chamber, and a plurality of piezoelectric sheets which are sequentially laminated. The piezoelectric sheets most distant from the pressure chamber among the plurality of piezoelectric sheets is sandwiched between the common electrode and at least one of the individual electrodes.

Abstract: A broadcast receiving device has a receiving unit which receives and modulates broadcast signals and outputs encoded signals, an acquiring unit which acquires program information relating to the broadcast signals, a detecting unit which detects information indicating whether or not downloading is necessary for each content from the program information, a determining device which determines whether or not the broadcast receiving device has the capability for downloading the content, and a display control unit which outputs video signals of the program information screen to which the information indicating whether or not there downloading is necessary and information indicating whether or not there is downloading capability are added, and the user determines whether or not downloading is possible from an EPG screen and the like.