Abstract: A semiconductor device having a sandwich construction formed by causing a semiconductor region and an opposed region to face each other across a thin film which is made of a substance having a wider forbidden band gap than that of the semiconductor region and having a barrier relative to the semiconductor region. The so-formed device exhibits various effects such as amplification, negative resistance, switching, voltage or current generation, photo-electric conversion, and light-emission either upon irradiation with light or upon application of a power source thereon.

Abstract: An ink jet recording method comprises using inks of two or more colors including yellow and forming a mixed color portion containing yellow on a recording medium by use of a plurality of inks with different dye concentrations for at least one color, wherein the yellow ink is attached onto the recording medium always prior to attachment of other inks thereonto.

Abstract: A DC-to-DC voltage-increasing power source suitable for use in an audio device mounted on an automobile or a portable type audio device includes a DC power source, a drive pulse generation circuit for generating drive pulses which are in 180 degree phase relationship, a switching circuit of a push-pull connection supplied with operating voltage from the DC power source and driven between an on-state and an off-state in response to the drive pulses, a charge and discharge circuit including capacitors charged by being connected in parallel to the DC power source and discharging a sum voltage by being connected in series to the DC power source and an output takeout circuit for taking out this sum voltage as a voltage-increasing DC output. The switching circuit is constructed of voltage-controlled type elements whose on-state is changed in response to the level of an on-pulse in the drive pulses and the drive pulse generation circuit includes a pulse level changing circuit for changing the level of the on-pulse.

Abstract: A hot press device has a pair of hot press rollers for heating and pressing a treatment object therebetween while rotating, and pairs of delivery rollers are arranged before and after the pair of hot press rollers. The treatment object passes back and forth through the pair of hot press rollers, and a controller controls the delivery rollers so that the circumferential speeds of the respective delivery rollers located downstream in the forward or reverse passing direction of the treatment object can be increased.

Abstract: A print holder for preserving a print comprises a combination of an upper plate with an adhesive layer on one side and with an opening as a window for observing an image, and a lower plate with an adhesive layer on one side, a print being inserted between the upper plate and the lower plate, thereby making the image locate in the opening, the upper plate and the lower plate being pressed together, as by placed one upon another.

Abstract: A print protecting member comprising a transfer layer laminated peelably on a substrate is provided in which the transfer layer comprises at least a surface layer and an under layer. The surface layer has a lower softening point than that of the under layer.

Abstract: A protective member is provided which comprises a substrate and a transfer layer provided releasably thereon, the transfer layer comprising at least a fluorescent whitening agent, an ultraviolet light absorber, and a light stabilizer. A method for protecting a print having an image formed from a dye is also provided. The method comprises a step of laminating and contact-bonding said protecting member on a surface of a side of the image of the print, and step of releasing the above-mentioned substrate from the laminated picture.

Abstract: An outer appearance quality inspection system comprising a mechanism for aligning objects to be inspected, a mechanism for transporting the aligned objects, light projectors for illuminating a light within a predetermined wavelength range against the objects being transported, light receiving devices for receiving the light reflected from each of the objects so as to convert the light into an electrical signal, an electronic circuit for obtaining the data representative of the conditions of the surfaces of the object in response to the electrical signal derived from the light receiving devices, and a mechanism for sorting the objects being transported in response to the data derived from the electronic circuit. The system can inspect the size, visible surface damages and coloring of an object such as orange automatically and reliably.

Abstract: A cartridge for use in fixing an anchor bolt that encludes a fluidtight constructed casing having therein a first fluidtight chamber and a second fluidtight chamber separated from the first chamber, the first chamber containing a resin composed mainly of an ester of an epoxy resin with an organic acid comprising acrylic acid, methacrylic acid or a mixture thereof, the second chamber containing a curing agent for the resin. By the use of such a cartridge in fixing an anchor bolt to a base, there can be attained a quick fixation of the anchor bolt to the base, a high adhesive strength between the anchor bolt and the base, and a high chemical resistance of the cured resin, with little or no lowering of the adhesive strength for an prolonged period of time.

Abstract: An ink-jet recording process for recording colored images comprises using n ("n" represents an integer of 2 or more) kinds of inks different from one another in dye concentration to express one color, wherein the inks are toned so that hues given by said n kinds of inks are continuous.

Abstract: An ink-jet recording method is provided which employs inks of at least one color and a plurality of inks different in dye concentration for each color. The method is characterized in that the viscosities of the plurality of inks of the same color in the temperature range of 0.degree. to 40.degree. C. satisfy the relationV.sub.max. -V.sub.min. .ltoreq.1.0 (cps)wherein, V.sub.max. and V.sub.min. represent the maximum and minimum values, respectively, of these viscosities.

Abstract: A method for ink jet recording comprises using inks of one or more colors and a plurality of inks different in dye concentration being used for each color.The pH of the inks for each color satisfies the following relation,0.85.ltoreq.pH min/pH maxwhere pH min is the minimum value of pH of the inks for each color and pH max is the maximum value of pH of the inks for said color.

Abstract: An ink-jet recording method in which inks of one or more colors and for each color a plurality of inks different in dye concentration are employed, which is characterized in that the maximum value (V.sub.max) of the viscosities of the inks of each color and the minimum value (V.sub.min) thereof satisfy the relation0.8.ltoreq.V.sub.min /V.sub.max.

Abstract: Disclosed is an optoelectronic semiconductor comprising a semiconductor substrate, a first insulating film covering the major surface of the semiconductor substrate and a second insulating film having electronic charge-storing means and lying on the first insulating film. When an optically guided wave is propagated to the first or second insulating film in the direction parallel to the major surface of the semiconductor substrate, an interaction is caused between the electronic charges stored in the charge-storing means and the optically guided wave, thereby allowing the optically guided wave to be modulated and the electronic charges to be released.