Abstract: This invention provides an image formation device at low cost, which can be miniaturized, of which the quality of an image is uniform, which can form a high resolution of color image at high speed wherein even if the relative mounting position of a light source and an optical element is dislocated, the deterioration of color registration can be reduced. Laser beams for each color sequentially emitted from each laser element of a laser array pass an imaging optical system and are split into the side of photoconductor drums and into the side of a deflecting optical system by a splitting optical system. Laser beams incident on the deflecting optical system are reflected by optical mirrors so that principal rays of the laser beams respectively converge on photodetectors and are incident on approximately the same position of each photodetector. The photodetectors individually detect the luminous energy of laser beams from each laser element.

Abstract: A switch containing a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc.

Abstract: An ink sheet having an ink layer, containing ink to be molten by heat generated by its absorption of received light, includes a magnetic layer being magnetized to have a preset magnetic pattern. The direction of polarization of the reflecting light varies depending on a state of the magnetization on the magnetic layer when part of the received light is incident on and reflected from the magnetic layer. The ink sheet is combined with a printer in which a recording medium and the ink sheet are coupled together, and ink is transferred to the recording medium when the ink sheet receives light. The printer includes optical heads for projecting a light beam upon the ink sheet while moving in the width direction of the ink sheet, sensors for sensing a state of polarization of the light beam reflected from the ink sheet, and actuators for adjusting an irradiating position of the light beam on the ink sheet on the basis of a state of polarization of the reflecting light that is sensed by the sensor.

Abstract: Disclosed are an electrode material for a non-aqueous solvent secondary battery, which comprises a composite carbonaceous material in which to the surface of a graphite carbonaceous material is attached a carbonized material of an organic substance in an amount to give a carbon residue of 12 parts by weight or less and 0.

Abstract: A light beam focal position detecting device for detecting the focal position of a scanning light beam to correct the focal error on the photosensitive drum surface includes a photosensor which is placed at a position on the light beam axis before or after the expected focal position and made up of a pair of rectangular opto-electric transducers having their confronting sides extending along the main scanning direction or a plurality of opto-electric transducers arrayed along the subordinate scanning direction.

Abstract: A switch comprising a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc.

Abstract: An optical beam recording device for performing image recording by focusing a plurality of light beams modulated according to an image signal through a focusing optical system onto a photosensitive member, including a light source having a plurality of arrayed light emitting portions for emitting the plurality of light beams; a light detecting device located at a given position for detecting a detecting light beam of the plurality of light beams; and a control device for controlling a focused condition of the plurality of light beams on the photosensitive drum according to a result of detection of the detecting light beam by the light detecting device. With this arrangement, shift of a focal position can be detected with high accuracy without increasing a response speed of the light detecting device and inviting the complication of configuration.

Abstract: A light reflecting and accumulating member includes a reflecting member, an accumulating member, and a stopping member. The reflecting member has an accumulating member mounting part sunk from the surface, and a reflecting area on the entire circumference of the accumulating member mounting part on the face side, and a stopping member mounting part sunk from the back side, on the back side. By adhering the accumulating member to the accumulating member mounting part, the peripheral edge of the accumulating member sinks from the surface of the reflecting member. The stopping member has a stopping piece for detachably fixing to the member to be mounted, and a connection piece, and by adhering the connection piece to the stopping member mounting part of the reflecting member, the peripheral edge of the connection piece sinks from the back side of the reflecting member.

Abstract: An apparatus for producing a multi-layer printed circuit board. The printed circuit board includes a bottom layer board, a hole board, and an adhesive sheet between the bottom layer board and the hole board. The printed circuit board is heated so that adhesive sheet bonds the bottom layer board to the hole board. A mold release sheet and a thermoplastic resin sheet begins to soften at a temperature lower than the melting temperature of the adhesive. A contraction control member controls contraction when the thermoplastic resin sheet cools.

Abstract: A data processing system, which includes a CD-ROM drive, addresses data in a CD-ROM and commands the CD-ROM drive to read the data. The data processing system selects one of a plurality of control programs corresponding to a format of the data in the CD-ROM used, and controls the CD-ROM drive to read the data addressed by using the control programs. Further, the data processing system processes the data read in a accordance with the data format and stores the data processed in a memory.

Abstract: A method for producing multi-layer printed board. The method includes heating a hole board as a top layer, an adhesive sheet, and a bottom layer board. The adhesive sheet includes a mold release sheet and a thermoplastic resin sheet which begins to soften at a temperature lower than the melting temperature of the adhesive. A contraction control member controls contraction when the thermoplastic resin sheet cools.

Abstract: Optical data record/reproduction apparatus which records and reproduces data to and from a record medium by moving a movable portion of an optical head including a reflecting member, a condenser lens, and the like, in the track direction of the optical record medium by drive unit. An adiabatic member is placed in the junction area between the movable portion and a tubular drive coil constituting the drive unit to move the movable portion in the track direction.

Abstract: A fixed section of an optical recording and reproducing apparatus is provided with an actuator for optically controlling the fine tracking of a laser beam to be held at a predetermined position, by moving a diverging convex lens of a relay lens in a direction perpendicular to that of the optical axis; first and second filter circuits for separating a tracking error signal outputted from a differential amplifier connected to a two-split light-receiving element into a high-frequency-side signal and a low-frequency-side signal respectively; a first driving control circuit for controlling the driving of a linear motor for moving a movable section of the apparatus on the basis of the low-frequency-side signal separated by the first filter circuit; and a second driving control circuit for controlling the driving of the actuator on the basis of the high-frequency-side signal separated by the second filter circuit.

Abstract: A magnetic optical recording/reproducing apparatus comprising: a movable focus adjusting member including converging means for converging a light beams emitted from a light source on a focal plane of an optical recording medium, focus coil means for driving the converging means in a direction substantially vertical to the plane of the optical recording medium by electromagnetic force when a current is applied, seek coil means for driving the converging means in a radial direction of the optical recording medium by electromagnetic force when a current is applied, and support means for supporting the focus coil means and the seek coil means; a carriage means for moving the movable focus adjusting member in the radial direction of the optical recording medium; and spring means fixed at one portion thereof to the movable focus adjusting member and the other end portion thereof to the carriage means for supporting the movable focus adjusting member to move the movable focus adjusting member to the carriage means i

Abstract: The invention is a method and device providing very high density information storage on an organomellic DCNQI charge transfer data storage medium. The medium is switched from one state to another through the application of an electric field to the medium by the probe tip of a scanning tunneling microscope resulting in an observable change in the electron density of the surface of the medium.

Abstract: A flying head assembly for a magneto-optical recording drive includes a first head portion of a nonmagnetic material, and a second head portion mounted in an aperture through the first head portion. The second head portion and aperture define an annular path through the first head portion. A coil for generating a magnetic field is wrapped concentrically around the aperture, either inside or outside of the second head portion. A laser light beam is reflected into the annular path and focused onto a recording medium.

Abstract: The invention is a method and device providing very high density information storage on an organometallic charge transfer data storage medium. The medium is switched from one state to another through the application of an electric field to the medium by the probe tip of a scanning tunneling microscope resulting in an observable change in the electron density of the surface of the medium. A STM tip is used to write, read and erase data via the organometallic charge transfer medium (e.g. TCNQ, or derivatives thereof).

Abstract: A floating head for use with a recording apparatus of magneto-optical memory type comprising a floating body which is provided in the vicinity of a rotating optical recording medium and which is made afloat by an air stream created by the rotation of the recording medium, an objective lens which is fitted in an optical path forming aperture in the floating body and which permits converging light from a light source to be focused on a focusing plane of the recording medium, and a coil which is installed in the vicinity of the optical path forming aperture in the floating body and which forms a magnetic field toward the focusing plane of the recording medium. The floating body is made of a soft magnetic material and is provided with a rim made of a soft magnetic material which is formed along the peripheral edge of the optical path forming aperture on the side closer to the optical recording medium and which projects toward the same.

Abstract: A method and apparatus for measuring resistivity employ the four-point probe method to measure the surface resistivity or volume resistivity of a sample. The method includes inputting sample shape information and calculating a resistance correction coefficient for the sample based on the shape information and information relating to a measurement position on the sample. The sample surface resistivity or volume resistivity is calculated by multiplying a resistance value, which is measured in accordance with the four-point probe method, by the correction coefficient.

Abstract: A copper-type conductive coating composition which comprises:(A) a copper powder,(B) a coating binder resin, and(C) at least one number selected from the group consisting of salicylic acid, its specific derivatives, and benzotriazolecarboxylic acid hydrazides.The copper-type conductive coating composition provides a conductive coating layer having excellent initial conductivity and capable of maintaining the level of it stable over a long period of the time.