Abstract: The light diffusing plate includes an unrecognizable structure having an optical refractive power, passing areas through which a collimated light incident from a side of the unrecognizable structure passes and a non-passing area other than the passing areas, which has relatively low light transmissivity compared with the passing areas, wherein both materials of the passing areas and non-passing area are applied simultaneously. The display apparatus includes this light diffusing plate, a liquid crystal display panel and a backlight unit. The image display apparatus includes an image display device having a matrix structure and a light diffusing plate including an unrecognizable structure which has an optical refractive power and is provided on a viewing side of a display screen of the image display device. The light diffusing plate has an excellent light diffusing efficiency, and can preferably reduce a contrast drop to be caused by a surface reflection.

Abstract: Disclosed is a stand-up type personal watercraft capable of easily discharging water in an engine room of a body that is limited in space even when the watercraft is beached. The stand-up type personal watercraft comprises a bulkhead 12 that defines an engine room 10 in the body 2 surrounded by a hull 3 and a deck 4; a water intake 16 formed in the hull 3, through which water is sucked by a water jet pump; a penetrating hole 26 formed in a lower portion of the bulk bead 12; a fitting member 27 mounted to the penetrating hole 26, a plug 28 removably attached to the fitting member 27; a hollow drain plug 24 provided at the periphery of the water intake 16, for mounting the grate plate 19; and a hose 29 connecting the fitting member 27 to the drain plug 24.

Abstract: A personal watercraft in which a battery is easily placed and charging and maintenance of the battery are easily performed, comprising: a body constituted by a deck and a hull; an engine room formed inside the body, for containing an engine; and a battery-accommodating portion for containing the battery for the engine, wherein the battery-accommodating portion is provided in the deck outside the engine room.

Abstract: The present invention provides a lightweight and simply-configured watercraft of a jet-propulsive type that can maintain steering capability in a way adapted to forward movement and rearward movement of the watercraft even when throttle-close operation is performed and the amount of water ejected from a water jet pump is thereby reduced. During forward movement, when the throttle-close operation and steering operation of a steering handle are detected and an engine speed is between an idling speed and a predetermined engine speed, the engine speed is temporarily increased. During rearward movement, when the engine speed is the idling speed, the engine speed is temporarily increased in the same way. The engine speed is increased by changing a fuel injection timing of a fuel injection system, a fuel injection amount, and/or an ignition timing of an ignition system of the engine.

Abstract: According to the present invention, there is disclosed a gas introduction system for temperature adjustment comprising passing a gas whose temperature is managed for the temperature adjustment of an object to be processed between a mounting surface of a mounting base for holding the object to be processed under vacuum and a back surface of the object to be processed through a gas supply line, controlling a flow rate adjustment valve by control means based on a measured pressure of the gas supply line measured by a manometer, and adjusting a gas flow rate to the gas supply line so as to obtain a set pressure, so that the gas pressure can be set to a predetermined value in a short time, and the system is miniaturized with little waste of the gas.

Abstract: A relay server computer adds control code to background contents to generate web data for display engagement, and sends the generated web data to every client computer. The control code becomes a controller by executed on the client. When an object such as image is pasted on the background contents displayed in an engaged fashion, the controller detects the event occurred by pasting, and sends the information indicating the event to the other clients via relay server. Consequently, the screen with the object being pasted is displayed in an engaged fashion among all clients. The object can be moved, modified, or deleted.

Abstract: A relay server obtains web data including a motion picture from a WWW server, and embeds control code composed of a script or bytecode in the obtained web data to generate web data for synchronization. The control code is sent to each of clients, and becomes a controller to control the browser in the same client. When one of the clients sends manipulating information indicating manipulation of the motion picture such as playback, stop, etc. to the relay server, the same relay server receive the manipulating information, and broadcast it to all of the clients including the sender. The controller of each client receives the manipulating information, and executes playback, stop, etc. in synchronization.

Abstract: A process of producing an optical diffusion film which comprises at least a transparent base layer on a transparent substrate, a layer of transparent microspheres over the transparent base layer and a light absorbing layer over said transparent base layer comprises the steps of: distributing transparent microspheres in a layer over the transparent base layer so that each the transparent microsphere is partly embedded in the transparent base layer; and by coating a solution layer of coloring material that is convertible into fine metal particles and treating the solution layer of coloring material under specified conditions so as thereby to convert the solution layer of coloring material into a layer of fine metal particles that are light absorbable.

Abstract: Image data supplied to an image forming apparatus are converted into image data linearly correlated with the image density, and the image ratio is calculated by dividing the number of pixels in which the toner is deposited at the image formation of thus converted image data on a print medium, with a value obtained by multiplying the total pixel number corresponding to the size of the print medium with the number of gradation levels per pixel. Then the toner amount consumed in the image formation based on the entered image data is determined by multiplying the image ratio, the size of the print medium to be used and the toner amount consumed per unit area in a solid image formation.

Abstract: An inner frame member, of a length that is less than the entire length of a hull, is joined to the inner surface of the hull that forms a lower portion of a body of a personal watercraft. The inner frame member has an engine mount portion that supports an engine thereon, an impeller shaft support region that supports thereon an impeller shaft of a propulsion device driven by the engine, and bulkheads extending in the lateral direction of the hull and joined to the inner surface of the hull. In accordance with the present invention, the personal watercraft is light weight, but also retains rigidity and assembling efficiency of the hull.

Abstract: An image formation apparatus includes a plurality of light sources for emitting a plurality of light beams and a scanning system for scanning the plurality of light beams emitted by the plurality of light sources on a common photosensitive body. A storage medium stores a look-up table containing setting values corresponding to each of the plurality of light sources. A processing unit processes image data based on the setting values corresponding to each of the plurality of light sources contained in the look-up table stored in the storage medium. Finally, a drive circuit drives each of the plurality of light sources based on the image data processed by the image processing unit.

Abstract: A flat plate collimator and backlight system capable of improving the display characteristics of liquid crystal display devices are obtained. In order to achieve this end, a collimator is provided which comprises a cholesteric liquid crystal layer exhibiting a selective-reflection wavelength band with respect to perpendicularly-incident light in the wavelength range &lgr;1 to &lgr;2 (&lgr;1<&lgr;2), and which satisfies the relation &lgr;0<&lgr;1 with respect to the maximum-emission wavelength &lgr;0 in the emission spectrum of the light source with which the collimator is used in combination, and a backlight system employing this collimator and light source is provided.

Abstract: The present invention provides a lightweight and simply-configured watercraft of a jet-propulsive type that can maintain steering capability in a way adapted to forward movement and rearward movement of the watercraft even when throttle-close operation is performed and the amount of water ejected from a water jet pump is thereby reduced. During forward movement, when the throttle-close operation and steering operation of a steering handle are detected and an engine speed is between an idling speed and a predetermined engine speed, the engine speed is temporarily increased. During rearward movement, when the engine speed is the idling speed, the engine speed is temporarily increased in the same way. The engine speed is increased by changing a fuel injection timing of a fuel injection system, a fuel injection amount, and/or an ignition timing of an ignition system of the engine.

Abstract: The light diffusing plate includes a light-transmissive support, a diffusing layer having light-transmissive spheres, and a light-sensitive color forming material interposed between the support and the diffusing layer, the light-sensitive color forming material containing a positive-acting diazo light- and heat-sensitive material or a positive-acting silver halide light-sensitive emulsion, or a negative-acting light-sensitive color forming material in the side contacting the light-transmissive spheres and a positive-acting light-sensitive color forming material in the side of the support, the light-sensitive color forming material being developed to take on color after generally parallel light is launched from a side where the diffusing layer is provided. The display apparatus makes use of the diffusing plate.

Abstract: A hatch cover structure for a personal watercraft, wherein a hatch cover is attached to a deck of the personal watercraft via a hinge unit having a double action mechanism, which moves the hinge shafts apart from a hull surface during the continued opening action of the pivotally moving hatch cover.

Abstract: In an electrophotographic image formation apparatus that plural lines on a surface of a photosensitive body are simultaneously scanned by plural laser beams for image formation, image deterioration due to differences among light quantities of the plural laser beams is correctly prevented by a simple and cost-effective structure. The present invention aims to lower the image deterioration due to laser start characteristics as much as possible, and especially to realize high-speed image formation without degrading highlight reproducibility and fine line reproducibility.

Abstract: Plural lines on a surface of a photosensitive body of an electrophotographic image formation apparatus are simultaneously scanned by plural laser beams for image formation. Each of a pair of semiconductor lasers 11a and 11b biased in an ON state is independently turned on. A surface potential of the photosensitive body in each case is measured by a measurement unit such as a surface potential sensor 30, a surface potential detection circuit 31 and an A/D conversion circuit 32. Based on the measured result, an operational current of each laser is determined by a CPU 33 such that the surface potential of the photosensitive body becomes a target-potential, e.g., 220V to 230V. An image pattern difficult to be influenced by the laser start characteristic and an image pattern easy to be influenced by the laser start characteristic are formed, and the formed image patterns are respectively measured so that the current supplied at no beam emission time is controlled according to the measured results.

Abstract: It is an object of the invention to provide a personal watercraft having a rear deck floor which can house goods necessary for water-skiing or the like and is provided with a space where a water-skier or the like sits when getting into the water or a space for embarkation when coming out of the water into a watercraft. In a personal watercraft having a whole plane view almost shell-shaped comprising a riding seat S provided from an almost central portion of a body A of a watercraft to a rear portion thereof, a steering handlebar 21 provided in front of the riding seat S, an engine E for propulsion provided below the riding seat S, and a jet pump P provided behind the engine, the jet pump being provided with an outlet port rearward for being driven by the engine, a rear deck floor 1 having a space for at least one adult to sit is provided behind the riding seat S and has an openable hatch cover 1A formed on the space, and a rear storage box 1B is formed under the hatch cover 1A.

Abstract: It is an object to provide a reverser for a watercraft which has a high go astern efficiency and also functions as a side thruster while holding planing performance. In a reverser (1) for a watercraft in which a deflector (1A) is movably provided behind a pump nozzle of a water jet pump (P) to change the direction of water flow ejected rearward from the pump nozzle, thereby allowing the body (A) to go in reverse, a discharge port (1a) which directs the water flow in a transverse direction is provided on both side portions of the deflector (1A), thereby feeding the water flow from the discharge port (1a) along a transom (T) of the body (A).

Abstract: It is an object to provide a locking mechanism of a deflector for a watercraft which can perform the locking and unlocking operation of the locking mechanism simply by executing up-down movement of the deflector.