Abstract: The waveform equalizer comprises equalizing means for equalizing the waveform of the reproduction signal based on the equalizing coefficient, reference signal-generating means for extracting an isolated wave from the reproduction signal to generate a reference signal based on the isolated wave and equalizing coefficient control means for carrying out an operation of the equalizing error of the isolated wave of the reproduction signal whose waveform has been equalized by the equalizing means from the reference signal, to control the equalizing coefficient based on the equalizing error, wherein the reference signal is generated based on the reproduction signal, and the equalizing coefficient is determined in response to the reproduction signal using this reference signal.

Abstract: A capstan motor which includes: a stator yoke having a multiple number of coils provided on a circle centered about a rotational shaft; and a rotor yoke having an annular magnet opposing the multiple number of coils and rotating integrally with the rotational shaft, and is constructed such that a hysteresis plate is provided opposing the rotor yoke on the side opposite the multiple number of coils for receiving leakage of the magnetic flux from the magnet and is attached rotatably relative to the rotary shaft; and driving force for rotation is extracted from the hysteresis plate, and a tape driving system using it.

Abstract: A two-way optical communication module includes a main waveguide which is optically coupled to an optical fiber and directs light incident from the optical fiber to a light-receiving element and a sub waveguide which is optically coupled to the side of the main waveguide and directs light emitted from a light-emitting element to the optical fiber so as to carry out an efficient two-way optical communication by using one optical fiber without the necessity for an optical branch device. With this arrangement, it is possible to provide an inexpensive and small-sized two-way optical communication module which readily enables an integration with other elements so as to exhibit suitability for a small-scale network, and to provide a two-way optical communication link which uses the two-way optical communication module.

Abstract: A tubular fabric is provided for forming the shaft of a prosthesis having a predetermined length and one open end, the other end of the shaft being closed for holding a coupling member except for an aperture corresponding to a portion of said coupling member which is inserted therethrough to extend outwardly. The tubular base material is selected to be longer than the length of the shaft of the prosthesis to be formed. By means of a ring the tube is annularly held together from the outside at a predetermined length so as to form a first section starting from the opening. The remaining second section is then folded back over the annular hole onto the first section. To form the shaft of the prosthesis the material is impregnated with a thermoplastic resin.

Abstract: The present invention provides for significantly improved ultraviolet optical filters. This new class of optical filters benefits from improved optical performance, extended physical longevity, high imaging quality of transmitted radiation, transmitted wavelength stability, and minimal autofluorescence. Preferred filters of the invention do not require any sealing from the ambient, are stable, and do not degrade over time and exposure to UV irradiation, and offer superior transmittance for use as bandpass filters.

Abstract: In an optical disk device of the present invention, a spindle motor is separated into (1) a first motor unit composed of a bearing member, a bearing support for supporting the bearing member, and a turn table fixed to a rotor magnet and (2) a second motor unit provided with a first stator coil. During a cartridge loading operation, after the first motor unit is moved towards an optical disk, the second motor unit is slidably moved to a space created by the movement of the first motor unit so as to be rotatably driven as a spindle motor, thus realizing a thinner spindle motor.

Abstract: The geometry of the cast part is provided as a digital pattern and an inverse pattern for the lost casting mold including any core is generated from the digital pattern. A layer of a particulate molding material is provided. The molding material is made of a first material and a second material. The first material is chemically inert when irradiated by electromagnetic radiation. The second material is curable by a chemical curing process that is initiated by electromagnetic radiation. The layer is scanned by irradiating electromagnetic radiation on places of the layer corresponding to the inverse pattern for the lost casting mold including any core. The irradiation is controlled to initiate the chemical curing process in the second material.

Abstract: A powdered emulsifier composition of the present invention comprises 5 to 90% by weight of a wax-like emulsifier and 95 to 10% by weight of a powdery emulsifier. Such a powdered emulsifier composition is improved in handling property unlike was-like emulsifiers.

Abstract: A liquid crystal display apparatus suppressed of orientation defect includes a first substrate having a main surface, a liquid crystal drive element formed on the main surface of the first substrate, an oriented film formed on the main surface of the first substrate, a patterned metal film on the oriented film, photosensitive resin formed on the metal film, a second substrate arranged facing the first substrate with the metal film and the photosensitive resin as a spacer, and a liquid crystal compound filled between the first and second substrates. Also, a method of fabricating this liquid crystal display apparatus is claimed.

Abstract: Disclosed are methods for producing recombinant cells and especially recombinant mammalian cell lines with enhanced expression of an amino acid sequence. Also disclosed are recombinant mammalian cell lines producing high levels of the amino acid sequence. The methods and recombinant cell lines of the invention have a number of useful applications including use in the efficient and large-scale production of recombinant proteins and polypeptides.

Abstract: A specimen collecting and testing device has a housing containing a test membrane. An elongated handle having a foam member is slidably received in the housing. Once the foam member obtains a specimen, the housing is moved with respect to the handle and the foam member is moved inside the housing and slid past the test membrane. In so doing, specimen is delivered to the test membrane. The test membrane may then be observed for optical changes in the case of an instant-type test, or removed for further processing. The device is particularly useful for collecting samples of urine or oral fluid for use in drug testing, pregnancy testing and the like; for testing of specimen for any of a variety of analytes such as HIV, hepatitis B, hepatitis C, etc.; and, for collecting samples of DNA for PCR testing.

Abstract: A reproducing layer, an intermediate layer, and a recording layer are successively stacked. The reproducing layer is made of a perpendicularly magnetized film whose domain wall coercivity is relatively smaller and whose domain wall mobility is relatively larger as compared with the recording layer around a reproducing temperature. When the reproducing layer, the intermediate layer, and the recording layer have Curie temperatures of Tc1, Tc2, and Tc3, Tc1, Tc2, and Tc3 satisfy a relationship of Tc2<Tc1<Tc3. Upon reproducing information, the reproducing layer is partially heated to more than the Curie temperature by irradiating with a light beam. This arrangement makes it possible to expand and reproduce a domain without causing a repetition of reproduction and to reproduce a signal having a period which is not more than an optical diffraction limit without reducing an amplitude of the reproduced signal, thereby dramatically improving a recording density.

Abstract: A method of generating motion vectors from a video signal, for use in motion compensation, is applicable to interlaced video signals. In the method alternate video fields are shifted vertically so as to align the picture lines of interlaced fields, by moving the lines of one field up by half a picture line and the lines of the next field down by half a picture line. The fields of each resultant pair are compared to produce a set of motion vectors which can be used to motion compensate the video signal. The accuracy may be improved using temporal filters operative on correlation surfaces derived over tow or more field intervals.

Abstract: Compounds having antagonistic activity on endothelin receptors can be effectively used for prophylaxis and/or treatment of hypofunction of organs which occurs in their surgery or transplant.

Abstract: The image forming apparatus includes: an image forming portion having a multiple image forming stations each forming a color separated image; a transfer device for superimposing and transferring color separated images; a pattern image forming device for forming a predetermined pattern image; a pattern image density measuring device for measuring the density of the pattern image. In this configuration, the pattern image is formed so as to be greater than the measuring area of the pattern image density measuring device and is formed of multiple lines having a line width and a line spacing so that any part of the pattern image within the measuring area will produce an approximately constant measured density value.

Abstract: A system interconnection device connected between two systems, such as a commercial bus line carrying power from a commercial power line and a private bus line carrying power from a private power generator, is able to connect and disconnect the two systems, and, in the event of a fault, has a current-limiting effect, thus preventing instantaneous voltage drop of the respective bus lines. In the system interconnection device, unit parallel circuits made up of diodes and DC reactors are serially connected so that the diodes thereof have opposite directions. With this structure, in realizing operations equivalent to those of a conventional system interconnection device having a DC reactor between DC terminals of a single-phase rectifying bridge circuit, the number of diodes, which are rectifying elements, can be halved.

Abstract: An image reader having a shading correction function includes a scanner for scanning an original, a converter for converting the received light from the original into electric signals and outputting the electric signal as data of an read image, and a corrector for carrying out a shading correction operation on the data of the read image on the basis of a shading correction value and outputting corrected image data. The corrector computes shading correction values for the whole reading face of the original platen from the shading correction value at an arbitrary position on the reading face and carries out the shading correction operation on the data of the read image on the basis of the computed shading correction values.

Abstract: A liquid crystal panel in accordance with the present invention has a structure of connected substrate composed of a single unit electrode substrate and a plurality of small substrates combined with the single unit electrode substrate via a sealant. A connected portion of the plurality of small substrates is filled with an adhesive, and the adhesive is also applied on an entire surface of the plurality of small substrates, that is, on a surface of the electrode substrates having a connected structure. A flexible coating layer covering the plurality of small substrates is attached via the adhesive. The coating layer may be attached via the adhesive to a single multi-panel composed of a plurality of divided liquid crystal panels connected to one another on the sides where the plurality of divided liquid crystal panels constitute a pair of electrode substrates sandwitching a liquid crystal layer.

Abstract: A magnetic recording medium having a recording layer made up of a ferrimagnetic material whose compensation temperature is included within room temperatures and an information recording-reproduction method using the magnetic recording medium. During recording, while a light beam is projected on the recording layer so as to raise the temperature of a recording portion, information is recorded by applying a signal magnetic field from a magnetic head. During reproduction, while a light beam is projected on a reproducing portion of the recording layer so as to raise the temperature thereof, information is reproduced by detecting leakage flux from the reproducing portion by the magnetic head. Thus, during reproduction, no magnetic flux is generated from other portions of the recording layer not irradiated by the light beam. With the arrangement, crosstalk due to leakage flux from adjoining tracks not irradiated by the optical beam can be eliminated.

Abstract: The present invention is intended to enable an electronic calculator device for calculating functions to display a mathematical expression by automatically substituting a variable-value into a variable therein in advance. An electronic device comprises an input device for inputting a mathematical expression containing a variable, a store device for storing a value of the variable and a display device for displaying a mathematical expression on a display screen. The electronic device is further provided with a converting device for reading a value for a variable contained in a mathematical expression from the store device and substituting the read-out value into the variable in the mathematical expression to be displayed on the display screen.