Abstract: A linear solenoid valve includes a solenoid having a coil wound around a coil bobbin, a fixed core, and a movable core for being attracted to the fixed core when the coil is energized, and a valve mechanism having a valve element for selectively bringing an inlet port and an outlet port into and out of fluid communication with each other responsive to a displacement of the movable core. The movable core has a nonmagnetic layer formed on an outer surface thereof and having a predetermined thickness.

Abstract: An inkjet head is composed of a plurality of plates stacked on each other. The plurality of plates includes a cavity plate formed with a plurality of ink pressure chambers and a plurality of manifold plates for forming a manifold chamber being in fluid communication with the ink pressure chambers to distribute ink thereamong. Each manifold plate is provided with an opening formed therethrough with a portion thereof being left in the opening. When the manifold chambers are stacked on each other, the openings of the manifold plates formed as above constitute a manifold channel taking the form of a closed loop. The portions of the manifold plates left in the openings are supported by a plurality of beams formed on the manifold plates. The beams are thinner than respective manifold plates, and are arranged so as not to overlap each other when viewed in a direction the manifold plates are stacked.

Abstract: An ink-jet recording apparatus includes an ink-jet head formed with an ejection face, and an ejection control board fixed to the ink-jet head. A head cover forms a container space that contains therein the ejection control board. The container space has an air inflow port and an air outflow port. An airflow generator generates an airflow that goes into the container space through the inflow port and out of the container space through the outflow port. Through the outflow port, an airflow filtered by the filter goes out of the container space across a plane including the ejection face.

Abstract: An ink-jet recording apparatus includes a brush, a suction unit, and a wiper. The brush brushes off matters adhering to an ink ejection face of an ink-jet head. The suction unit sucks the matters brushed off by the brush. The wiper has a contact face to be brought into contact with the ink ejection face to remove matters adhering to the ink ejection face. A brush moving mechanism is provided for moving the brush in parallel with the ink ejection face. A wiper moving mechanism is provided for moving the wiper in parallel with the ink ejection face. The wiper moving mechanism can move the wiper with bringing the contact face of the wiper into contact with the ink ejection face. A controller of the ink-jet recording apparatus controls the brush moving mechanism to move the brush to brush off adhering matters from the ink ejection face, and controls the suction unit to suck the adhering matters.

Abstract: The invention aims at preventing an occurrence of artefacts while reducing power consumption. A matrix addressing method for alternately driving pixels. The frame period of the images is formed by successively sequencing on a time series a plurality of block periods, the block periods each being composed of a first half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with one polarity, the second half block being a period for successively sequencing on a time series application timings of the pixel voltages for one or more row electrodes to be provided with the other polarity. Ones of even-numbered row electrodes and odd-numbered row electrodes in arrangement order on the display screen are selected in the first half block. The others spatially adjoining the ones are selected in the second half block.

Abstract: A flow path unit of an ink-jet head includes a sub-manifold 5a communicating with nozzles and pressure chambers through ink supply ports 13a. The plural ink supply ports 13a are formed in the upper surface of the sub-manifold 5a and in areas close to both side ends in the longitudinal direction of the sub-manifold 5a.

Abstract: A reservoir unit of an inkjet head has a plurality of laminated reservoir plates that forms an ink supply channel, and a flexible film that absorbs a fluctuation of pressure of ink in an ink reservoir. The flexible film is provided between adjacent two reservoir plates of the laminated plates. The adjacent two reservoir plates forms the ink reservoir. The flexible film partitions the ink reservoir into a first space to be filled with ink and a second space to be filled with no ink.

Abstract: A printing apparatus includes a medium casing which accommodates at least one printing medium in a stack manner, an accommodated medium conveying unit which conveys the at least one printing medium accommodated in the medium casing from a first medium standby position to a second medium standby position, a feeding unit which feeds an outermost printing medium of the at least one printing medium conveyed to the second medium standby position from the medium casing, a printing medium conveying unit which conveys the fed printing medium from the feeding unit to a printing position, a print head which is disposed at a position opposed to the printing position and carries out a printing process on a printing surface of the conveyed printing medium, and a brush which brushes off the printing surface of the printing medium at a position between the second medium standby position and the printing position.

Abstract: A piezoelectric actuator includes a piezoelectric vibrating plate including piezoelectric ceramics, an internal electrode formed on a first surface of the piezoelectric vibrating plate, a piezoelectric layer formed on the internal electrode, and a plurality of surface electrodes that are provided on a surface of the piezoelectric layer. When the internal electrode is grounded and a predetermined voltage is applied to a liquid contacting with a second surface of the piezoelectric vibrating plate, a value of a current flowing between the liquid and the internal electrode is not more than 0.01 ?A.

Abstract: A polarizer-protective film includes: a film including a polyester resin as the essential ingredient thereof, and having a moisture permeability of at most 700 g/m2·day and an in-plane retardation Re of at least 500 nm; and a light-scattering layer provided on at least one surface of the film.

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: A method for manufacturing an optical disk having a middle layer on a substrate includes the steps of coating an ultraviolet curing resin over the substrate, irradiating ultraviolet rays to the ultraviolet curing resin and prepolymerizing the ultraviolet curing resin, and forming the middle layer by pressing a stamper against the prepolymerized ultraviolet curing resin, irradiating ultraviolet rays to the ultraviolet curing resin and thus curing the ultraviolet curing resin.

Abstract: A piezoelectric actuator that includes plural individual electrodes each of which includes a driving electrode and a connection terminal disposed at one end of the driving electrode. A maximum difference in height between the connection terminals is 4 ?m or less.

Abstract: A laminated bonding structure of thin plate members includes; a plurality of thin plate members laminated through an adhesive agent, the plurality of thin plate members including at least one thin plate member having a plurality of holes formed therein; and a hole group encircling groove that encircles a hole group constituted by at least part of the plurality of holes is formed on the thin plate member having the plurality of holes.

Abstract: A manufacturing method of an optical disk in which information recording layers are formed onto a resin layer laminated on a substrate surface. The substrate surface is coated with the resin layer. The substrate and a stamper are arranged into a vacuum chamber so that the resin layer surface and the stamper surface with concave/convex portions face almost in parallel. The chamber is set into an almost vacuum state while holding the facing state of the substrate and the stamper. The chamber is changed from the almost vacuum state to an atmospheric pressure or higher. The substrate and the stamper are overlaid. The stamper is pressed by a differential pressure between the almost vacuum pressure and the atmospheric pressure or higher, thereby adhering the substrate and the stamper and transferring the concave/convex portions to the resin layer. The resin layer with the transferred concave/convex portions is hardened.

Abstract: An ink-jet head includes a flow path unit in which an ink flow path is formed and plural actuator units bonded to an upper surface of the flow path unit. On the flow path unit, an adhesive is applied to an area not covered with the actuator unit. Individual electrodes are disposed on an upper surface of the actuator unit, and are electrically connected to a flexible printed circuit. The flexible printed circuit is fixed to the flow path unit by the adhesive. A recess as a stepped part is formed between the adhesive and the actuator unit and on a surface of the flow path unit at a side of the flexible printed circuit.

Abstract: A flow path unit is provided with an individual ink flow path including a pressure chamber opposite to a sub-manifold 5a and an individual ink flow path including a pressure chamber not opposite to the sub-manifold. The sub-manifold is provided with a beam connecting an upper surface and a lower surface of the sub-manifold.