Abstract: A manufacturing method produces a semiconductor IC device which can maintain a low power consumption for electronic circuits and form gate-isolation layers of different thicknesses without increasing the manufacturing cost. The semiconductor IC device has gate-isolation layers of different thicknesses on the same semiconductor substrate surface. To form such gate-isolation layers, a silicon dioxide layer is formed in first and second regions. The dopant-concentration is adjusted in silicon dioxide layer that is to have a thickness different from the above silicon dioxide layer thickness in the second region B. A carbon-containing semiconductor layer is selectively formed in either the first region or the second region. Therefore, there is no need for additional steps for forming silicon dioxide layers of different thicknesses in the first region and in the second region.

Abstract: A method of forming pellets or agglomerates of high density boron nitride from high purity hexagonal boron nitride by crushing the high purity hexagonal boron nitride into boron nitride particles extending over a size range of at least 100 microns with the majority of the particles having a particle size above 50 microns and cold pressing the crushed particles into a compacted form. The compacted form is then granulated into a granulated powder and again cold pressed to form pellets or agglomerates of boron nitride particles with the operations of cold pressing and granulation occurring in one or more stages.

Abstract: The present invention provides a motor and a stator structure of the motor and an assembly method of the stator structure and a method of installing the motor. The stator structure of the motor contains a stator substrate having a double-layer structure of a printed circuit board and a magnetic plate jointed together at a plurality of calking sections, wherein a centroid is determined with respect to the plurality of calking sections on the printed circuit board, and a vacant area having no electric parts provided is determined nearby the centroid on the printed circuit board to allow the vacant area to be supported by a retainer of a calking jig.

Abstract: The wire stand of the present invention includes an upper rim of wire steel in a substantially rectangular configuration, a lower rim of wire steel of similar configuration and a plurality of wire legs affixed at one end thereof to the upper rim and affixed to the lower rim such that the upper rim and lower rim lie in substantial parallel alignment to one another with the wire legs extending below the lower rim to maintain the lower rim a fixed distance above the support upon which the stand is placed. Each wire leg includes an offset for forming a substantially horizontal displacement of the wire leg relative to its point of attachment to the upper rim so that the wire legs of one wire stand can readily nest within another wire stand without significant wedging.

Abstract: An illumination apparatus is provided capable of obtaining identical line widths at all positions in an image surface. A projection exposure apparatus using this illumination apparatus is also provided as well as a method of manufacturing the projection exposure apparatus and a method of manufacturing a device using this apparatus. The illumination apparatus includes a light source system for supplying a light beam, an optical integrator for forming a plurality of light sources based on a light beam from the light source and a condenser optical system for converging beams from the plurality of light sources for illuminating an illuminated surface. The apparatus also has a filter placed in a location that is in an optically conjugate relationship to the illuminated surface. The filter has at least a first area corresponding to a first portion of the plurality of light sources, and a second area corresponding to a second portion of the plurality of light sources other than the first portion.

Abstract: In an illumination device used for a color image projector, indefinitely polarized light beams from a light source are separated by a polarization beam splitter into two linearly polarized light beams respectively having polarized planes perpendicularly intersecting to each other. One of the two polarized light beams is made to have the same polarized plane as that of the other by a 1/2.lambda. wave-plate. Second and third lens arrays are respectively placed at positions where an optical distance from a first lens array to the second lens array is the same as that from the first lens array to the third lens array. Principal rays of luminous fluxes outputted from microlenses of the second and third lens arrays are made to be parallel to each other and to a superimposing lens. The illumination light outputted from the superimposing lens illuminates a display device in a telecentric optical system using optically a visual field lens.

Abstract: The present invention provides a deflection yoke for deflecting an electron beam emitted from an electron gun of a CRT (cathode ray tube). The deflection yoke is mounted on the CRT at a position between a neck tube having a small diameter section and a funnel having a large diameter section of the CRT. The deflection yoke comprises a horizontal deflection coil for deflecting the electron beam in a horizontal direction in the CRT, a vertical deflection coil for deflecting the electron beam in a vertical direction in the CRT, and a yoke core having a cone shape with a large diameter part at one end thereof in a side of the funnel and a small diameter part at another end thereof in a side of the neck tube to allow the yoke core to cover the horizontal and vertical deflection coils. The yoke core is made of a molded magnetic material cured by heating.

Abstract: There is provided a heat exchanger with a receiver which has a small diameter and compact size without a liquid refrigerant suction pipe.The interior of a header tube 2 is partitioned into three chambers A, C, and F by partition plates 8a and 8b. The chamber C is provided with a refrigerant inlet 6, and the chamber F with a refrigerant outlet 7. Also, the interior of a header tube 3 is partitioned into chambers B, D, and E by partition plates 8c and 9. Receiver connecting flanges 11 are inserted in the side surface of the chambers B and E, and a receiver body 18 is fixed via receiver headers 21. An inlet passage 16 and an outlet passage 17 are formed in the receiver connecting flange 11 and the receiver header 21. A liquid refrigerant entering through the inlet passage 16 after passing through the chamber B drops in the receiver body 18 by gravity, and is conducted through the refrigerant outlet 7 after going through the outlet passage 17, chamber E, heat exchange tubes 4, and chamber F.

Abstract: A resin composition for three-dimensional object by optical stereolithography containing a colorant, such as carbon black, in an amount of 0.05 to 0.5% by weight can provide a colored three-dimensional object which has excellent physical and mechanical properties such as dimensional accuracy, shape stability, hardness and tensile strength and elastic modulus in tension, as well as light-shielding properties, gives a massive impression and is colorful at a high optical shaping speed and in a good productivity.

Abstract: Opposed faces of two disk substrates are bonded by an adhesive layer whose characteristic parameters are set in predetermined ranges, particularly in the values of a product of Young's modulus and the film thickness in a range of 1.0.times.10.sup.-2 kg/mm to 3.0 kg/mm, a product of Young's module and the thermal expansion coefficient in a range not larger than 1.5.times.10.sup.-2 kg.multidot.mm.sup.-2 .multidot..degree. C..sup.-1, or a product of the thermal expansion coefficient and the film thickness in a range not larger than 2.0.times.10.sup.-5 mm /.degree. C. Preferably, the glass transition point of the used adhesive is set to a value in a range of 20.degree. C. to 80.degree. C., and the film thickness is set to a value in a range of 10 .mu.m to 100 .mu.m.

Abstract: Apparatus for detecting a discharge of water such as a leak in a device containing a relatively large volume of water such as a hot water storage tank having a pressure relief valve and for shutting off the water supply to such device in response to such detection. The apparatus includes a relatively shallow pan located in proximity to the bottom of the device for collecting water discharged from the device either from a leak or from opening of the pressure relief valve, a float switch mounted in the pan for detecting the presence of water in the pan above a predetermined level and a shut off control valve for disabling the water supply to the device upon activation of the float switch.

Abstract: A signal reproducing apparatus realizes an auto-tracking in reproducing a plurality of recorded signals simultaneously with a simple construction. The signal reproducing apparatus is featured by comprising a plurality of reproducing circuits for reproducing a plurality of recorded signals from a plurality of tracks TQ1, TQ2, TP1, TP2, TA1 and TA2 formed on a recording medium, a plurality of amplitude level detection circuits for detecting amplitudes of at least two of output signals of the reproducing circuits and an operation circuit for generating a tracking control signal from a signal obtained by processing the amplitude level detection signals from the amplitude level detection circuits in a predetermined manner.

Abstract: A method for operating a computer by means of a pointer comprises providing counters for memorizing coordinate displacements of the pointer index; choosing one of two modes, the REGISTER OR MEMORY (R/M) mode or the ACTIVE OR PLAY (A/P) mode; when in the R/M mode, moving the pointer index from a selected base point to a reference position corresponding to a computer operation, and memorizing the resulting pointer index displacements; and when the pointer in the A/P mode, bringing the pointer index to the base point, applying to it the memorized displacements, thus moving it from the base point to the reference position, and carrying out the operation corresponding to this latter. A computer apparatus comprises, in addition to the conventional elements of a pointer operated computer, counters for registering differential displacements and means for retrieving from the counters the registered differential displacements and applying them to a base position of the pointer.

Abstract: A read only memory (ROM) disc 10 has an annular ROM area 12 in an outer area thereof, and a random access memory (RAM) disc 20 has an annular RAM area 22 in an inner area thereof. The ROM disc and the RAM disc are manufactured independently each other under respective preferable conditions. An optical disc 30 is provided by adhering the ROM disc and the RAM disc each other. An optical pickup 32 reproduces the optical disc or records thereon by irradiating a light from one side thereof.

Abstract: A process for the preparation of thermally stable polymers of the formula I: ##STR1## wherein n+m=1 through 5, and x denotes the degree of polymerization, comprises polymerizing monomers of the formula Ia: ##STR2## wherein n+m=1 through 5, in a non-protic solvent.

Abstract: There is provided a method for flue gas desulfurization which is capable of conducting minute control of oxidation and which is capable of maintaining the concentration of sulfurous acid in an absorbent liquid within a proper range in a highly reliable and efficient manner, even in the case where an abrupt change occurs in the operational conditions of the system. In the method for controlling the oxidation in flue gas desulfurization, the value of proportional sensitivity K in the feed back control process, which is based primarily on the oxidation-reduction potential, is increased depending on the deviation .epsilon. in a region where the detected oxidation reduction potential value PN is below the target oxidation reduction potential value SN in correspondence with the characteristic change of the oxidation-reduction potential against the concentration of sulfurous acid.

Abstract: The electroanalytical, voltammetric cell includes a cell body housing, in addition to a reference electrode, a working electrode and, in its lowermost portion, a counter-electrode. An arrangement for deoxygenating the sample solution includes feeding the sample solution through a deoxygenation conduit in contact with a stream of an inert gas. An inlet for the deoxygenated sample solution is provided in the cell body in the space between the working electrode and the counter-electrode, and an exit for the sample solution is provided in the cell body at a level above the working electrode. Vacuum and/or pressure is utilized for causing the sample solution to flow to the exit, to be discharged from the cell above the working electrode, thus assuring that the space between the working electrode and the counter-electrode is constantly filled with sample solution.

Abstract: A photocurable resin composition comprising (A) at least one urethane di- or triacrylate, which is a novel compound, (B) a radical polymeriable compound, and (C) a photopolymerization initiator, the weight ratio of the urethane acrylate (A) to the radical polymerizable compound (B) being 65/35 to 25/75; a method of producing a photo-cured object by photo-curing the above composition; a vacuum casting mold obtained by the above method; and a vacuum casting method using the above mold.

Abstract: A DSV (Digital Sum Value) control system for use in conversion of a sequence of m-bit digital data codes into at least first and second sequences of n-bit digital modulation codes using a plurality of modulation tables under the DVD (Digital Video Disc) standards, for example. The DSV control system outputs a sequence of modulation codes produced by selecting, in time sequence, one of the codes of the first sequence or one of the codes of the second sequence according to a select signal SB. The select signal SB is provided based on a DSV control enable flag indicating that DSV control enable codes of the first and second sequences will appear at a following address and a select signal SA indicating which of the DSV control enable codes of the first and second sequences should be selected in order to optimize a DSV of the outputted sequence of modulation codes.