Abstract: An optical scanner assembly in which a pair of F&thgr; lenses are arranged symmetrically across a single deflector means and a reflector for introducing a light beam from at least one of a plurality of light sources to the deflector means is arranged on the side opposite to that light source with respect to an axis of symmetry of the F&thgr; lenses so that the optical path up to the reflector crosses the axis of symmetry, thereby securing the optical path length from the light source to the deflector for the miniaturization of the optical scanner assembly and allowing easy adjustment for equalizing the optical path lengths of all the light sources.

Abstract: A light-sensitive unit used in an image-forming device such as an electrostatic copier or printer, which enables one to easily mount and demount a light-sensitive drum without removing an electrically charging device and with no fear of damaging an edge of a cleaning blade. A second process unit (light-sensitive unit) has a resin-made frame having a cleaning device and includes a light-sensitive drum and an electrically charging device, which are removably mounted therein respectively. The light-sensitive drum is mounted in the frame by first axially inserting its rear-end bearing portion into a rear-side drum-holder and by horizontally turning its front-end bearing portion and placing it in a front-side drum-holder along a guide groove provided in the side thereof. Finally, a stopper is fitted in the front-side drum-holder to prevent the drum from slipping out of the holder.

Abstract: An information processing structure is disclosed that is formed of single electron circuits each operating rapidly and stably by way of a single electron operation. The information processing structure includes a MOSFET (11), and a plurality of quantum dots (13) disposed immediately above a gate electrode (12) of the MOSFET and each of which is made of a microconductor or microsemiconductor of a nanometer scale in size. Between each of the quantum dots and the gate electrode is there formed an energy barrier that an electron is capable of directly tunneling. The total number of such electrons moved between the quantum dots and the gate electrode is used to represent information. In the structure, a power source electrode (14) is disposed in contact with the quantum dots and a pair of information electrodes (15) is disposed across a quantum dot in contact therewith for having electric potentials applied thereto, representing data of information.

Abstract: A charging device which has a grid disposed between a discharge element and the photosensitive drum. The grid is formed of a regulating portion having a mesh configuration for the range opposing the image area on the photosensitive drum and non-regulating portions with openings for the range opposing the non-image area. The flow of ions discharged from the discharge element is regulated as to their passage through the grid thereby so as to be uniform and charge the image area on the photosensitive drum uniformly. The flow of ions reaches the non-image area without being shaded by the grid, so as to enhance the surface potential for prevention against toner adherence.

Abstract: An antibacterial glass is a ZnO—B2O3—SiO2 glass and includes 0-6 wt % Na2O. Typically, the antibacterial glass is used as an antibacterial agent which is filled into a resin.

Abstract: &bgr;-alanine compounds or a pharmaceutically acceptable salt thereof, which is useful as a glycoprotein IIB/IIIa antagonist, inhibitor of blood platelet aggregation and inhibitor of the binding of fibrinogen to blood platelet; a composition containing the same, a process for the preparation of the compound, and a process for the treatment of diseases caused by thrombus formation, for example, are provided.

Abstract: This invention relates to &bgr;-alanine derivatives represented by the following formula: wherein each symbol is as defined in the specification and pharmaceutically acceptable salt thereof which is glycoprotein IIb/IIIa antagonist, inhibitor of blood platelets aggregation and inhibitor of the binding of fibrinogen to blood platelets, to processes for the preparation thereof, to a pharmaceutical composition comprising the same and to a method for the prevention and/or treatment diseases indicated in the specification to a human being or an animal.

Abstract: A scroll compressor, in which as a coolant is applied a mixture coolant obtained by mixing at least one or more kinds selected from a group of hydro fluoro carbon, within a closed container thereof, comprising: an electricmotor; a rotary scroll driven with said electric motor; and a stationary scroll, whereby forming a scroll compression mechanism between said rotary scroll for compressing said coolant, wherein said scroll compression mechanism comprises: Oldham ring for supporting said rotary scroll so that said rotary scroll perform a gyrating movement with respect to said stationary scroll without spinning around an axis thereof; and a frame for supporting said Oldham ring in movable manner for purpose of achieving supporting of said rotary scroll mentioned above, wherein said Oldham ring is formed from sintered alloy of iron group, while said frame and said rotary scroll are formed from cast iron, and after treating a steam process thereon, a sliding surface of said Oldham ring is machined by means of an

Abstract: An oscillating piston type compressor has a piston formed integral with a blade. The compressor accommodates in a casing a compression mechanism section and a motor section, the mechanism including the piston having a plate-shaped blade integrally formed on a cylindrical portion is fitted onto an eccentric portion of a crankshaft to perform orbital motion relative to an inner peripheral surface of a cylinder, the plate-shaped blade being formed at its radial end surface with a recess or a protrusion, which serves as a reference of position.

Abstract: A sealing material for electric parts containing a lead-free tin silicate-phosphate glass of 50-100 volume percents and refractory fillers of the balance. The lead free tin silicate-phosphate glass consists essentially of, by molecular percent, 30-80% SnO, 5.5-20% SiO2, and 10-50% P2O5. The glass may contain at least one of glass stabilizing elements, said glass stabilizing elements including 3-25% ZnO, 0-4.9% B2O3, 0-5% Al2O3, 0-10% WO3, 0-10% MoO3, 0-10% Nb2O5, 0-10% TiO2, 0-10% ZrO2, 0-15% R2O (R is Li, Na, K, and/or Cs), 0-5% CuO, 0-5% MnO, 0-10% R′O (R′ is Mg, Ca, Sr and/or Ba), a total content of at least one of the glass stabilizing elements being up to 40%.

Abstract: This invention relates to &bgr;-alanine derivatives represented by the following formula: 1

Abstract: A charging device which has a grid disposed between a discharge element and the photosensitive drum. The grid is formed of a regulating portion having a mesh configuration for the range opposing the image area on the photosensitive drum and non-regulating portions with openings for the range opposing the non-image area. The flow of ions discharged from the discharge element is regulated as to their passage through the grid thereby so as to be uniform and charge the image area on the photosensitive drum uniformly. The flow of ions reaches the non-image area without being shaded by the grid, so as to enhance the surface potential for prevention against toner adherence.

Abstract: A tin borophosphate glass for use in sealing materials includes, by mole, 30 to 80% of SnO, 5 to 60% of B2O3, and 5 to 24% of P2O5 as main components. The glass is free of lead but is of equal quality to those of conventional lead-containing sealing glasses. The glass can provide a satisfactory sealing material.

Abstract: This invention relates to &bgr;-alanine derivative represented by the following formula (I); 1

Abstract: An object of the invention is to reproduce a faithful image irrespective of thermal expansion of a light-scanning unit and to reproduce a faithful image without enhancing the strength of the light-scanning unit excessively. A pair of supporting portions of a light-scanning unit, each having a flat face, are supported in linear contact with a right column-shaped supporting member provided with the apparatus body. The light-scanning unit is provided on the supporting member near to a starting position where writing image data on a photosensitive body with a scanning line is started in a main scanning direction so as not to be mutually displaced relative to the supporting member. Thereby, the light-scanning unit is allowed to extend in the longitudinal direction of the supporting member due to thermal expansion of the light-scanning unit.

Abstract: A color image apparatus which has a cooling arrangement to help prevent a plurality of light-scanning units for respective colors therein from being adversely influenced by heat from a thermally fixing unit within the apparatus. In a space portion where all light-scanning units are housed, an air-exhausting fan is provided in the vicinity of the light-scanning unit nearest to the thermally fixing unit, and an air hole is formed at a position farthest from the thermally fixing unit. Additionally a temperature sensor is mounted on the light-scanning unit nearest to the thermally fixing unit. Rotation speed of the air-exhausting fan is controlled so that the temperature detected by the sensor does not exceed a predetermined temperature limit.

Abstract: In an optical scanning device for forming an electrostatic latent image on an image-bearing body with scanning beam released from a light source, a support body having a plurality of supporting faces and first and second optical means for directing the scanning beam from the light source onto the image-bearing body are installed. Moreover, in the support body, a light transmitting means for transmitting the scanning beam from the first optical means to the second optical means is installed in the vicinity of a ridge portion thereof that is the least susceptible to deformation and distortion and strongest in its strength. Thus, it becomes possible to improve a light image in its precision that is formed by the scanning beam directed onto the image-bearing body.

Abstract: In an image forming apparatus wherein a multiple number of image supports form developer images of different colors so that the developer images of different colors corresponding to the multiple number of image supports are superimposed to a recording medium to form an image, flywheels are set at the ends of the rotary shafts of multiple image supports corresponding to relatively highly visible colors while no flywheel or a flywheel having a different diameter or weight from that of the above is set for the image support corresponding to a less visible color so as to make the inertial condition different from that of the others.

Abstract: The image processing circuit essentially includes an image data input portion, an image processing portion, an image data output portion, an image memory composed of a hard disk drive etc., a central processing unit (CUP), an image editing portion, an external interface portion. Based on the determination result of the laser recording status determination by the CPU, an LCU also serving as a mirror motor control device, stops or retards the drives of driving motors, one by one, in the order of their completion of laser recording. The image processing circuit may further has a mode manager for checking the usage frequencies of the first most processing mode in which the input image information is image processed as color image information and the second processing mode in which the input image information is processed as monochrome image information. Moreover, the image processing portion may further has an original discriminating portion for determining the color type of an original.

Abstract: An image forming apparatus provided with a photoreceptor with an internal gear includes the internal gear in a photoreceptor drum, a pinion gear in engagement with the internal gear, and a cleaning unit and a developer unit which apply contact pressure onto the photoreceptor drum. The pinion gear is provided in such an area that a resulting force of the contact pressure respectively applied from the process elements does not cause a distortion of the photoreceptor drum which exceeds an axial backlash determined in initialization according to a distance between axes of the pinion gear and the internal gear. The described arrangement prevents interference between non-driving surfaces of the internal gear and the pinion gear. As a result, a smooth rotary motion of the photoreceptor drum can be ensured, thereby preventing an image defect caused by an unstable rotary motion of the photoreceptor drum.