Abstract: An absorption refrigerator uses water as a refrigerant and a halogen compound as an absorption solution, and is characterized in that an oxide film of thickness of 0.02-5.0 .mu.m is formed on a surface of at least one of a heat exchanger and a high temperature regenerator. And a production method of the absorption refrigerator is characterized by oxidizing a surface of at least one of a heat exchanger and a high temperature regenerator at a temperature of 200-800.degree. C., and adjusting a heating temperature and a heating retaining time so that a value of parameter (P), obtained according to P=T (5+log t) is 3.5-6.0.times.10.sup.3, wherein T represents heating temperature (.degree.K), and t heating retaining time (minute).

Abstract: The packaging case comprises, when assembled, a back part (aback hanging board), a bottom part (a bottom cover), a front part (a front cover, a front hanging board), the boards and covers being formed continuously in this order and bordered by fold lines, and a side part (a side cover, a glue margin) continuously extending from each side edge of the front cover except the neighborhood of the front hanging board and bordered by fold lines. A window is formed in the front cover, and a hook hole is respectively punched in the front and the back hanging boards to make a single matching hook hole. In one side edge of the back hanging board, a U-shaped perforated tear portion is provided for tearing off a part of the side edge glued to a corresponding glue margin.

Abstract: A gamut compression method and apparatus for a color DTP system in which more natural-looking color regeneration is achieved in consideration of the difference in gamut from one device to another. If the gamut of the output system GMout is smaller than that of the input system GMin, the gamut of the input system is divided into four portions in a two-dimensional plane of lightness and chroma, under a constant color hue, using two straight line segments, and gamut compression is done by varying the compressing direction for each area, so that the color in the gamut of the input system will be converted into the color in the gamut of the output system.

Abstract: An underwater heater for warming water in an aquarium comprises a thermal sensor for sensing temperature of a main heater body and a control unit for controlling operation of the main heater body via reception of a detect signal output from the thermal sensor. In addition to a switch device for opening and closing a power-supply circuit for supplying power to the main heater body, the control unit further comprises a drive circuit, an abnormality-detection circuit, and a memory circuit. Whenever the abnormality-detection circuit detects that the thermal sensor has detected an abnormal temperature, the drive circuit activates the switch device to open itself to cause power supply to the main heater body to be shut off and to simultaneously cause the memory circuit to store the abnormality-detected condition therein.

Abstract: The present invention provides a method of and an apparatus for efficiently and economically discharging solid particles, which have sedimented on the bottom of a tank, out from the tank. A liquid is ejected from an ejector installed in the tank to move the sedimented solid particles to a predetermined place from which the sedimented solid particles are discharged out from the tank. Further, a solution which contains sedimentary solid particles is cooled and the solid particles are efficiently separated by a solid-liquid separator.

Abstract: An image storing apparatus comprises reading unit for reading an original image, storing unit for storing the image from the reading unit, retrieving unit for retrieving the image stored in the storing unit in accordance with retrieval information, and printing unit for printing an image representing the retrieval information on the original.

Abstract: An absorption refrigerator uses water as a refrigerant and a halogen compound as an absorption solution, and is characterized in that an oxide film of thickness of 0.02-5.0 .mu.m is formed on a surface of at least one of a heat exchanger and a high temperature regenerator. And a production method of the absorption refrigerator is characterized by oxidizing a surface of at least one of a heat exchanger and a high temperature regenerator at a temperature of 200.degree.-800.degree. C., and adjusting a heating temperature and a heating retaining time so that a value of parameter(P), obtained according to P=T (5+log t) is 3.5-6.0.times.10.sup.3, wherein T represents heating temperature (.degree.K), and t heating retaining time (minute).

Abstract: A levelness adjusting device includes a positioning a unit mounted on a support surface for an actuator unit which is fixed on a frame, in which said positioning a unit comprises a base screw hole to play a support point, several adjusting screw holes which are located on a same circumference centering the base screw hole and are opened at positions adjusted to an inclination of the shaft for rotating a mirror body and several screws threaded into the screw hole so as to fix the actuator unit on the frame. The screw is penetrated from the actuator unit front portion to the frame via the screw hole which is formed on a periphery edge of the actuator unit. The screw is threaded into the base screw hole and the corresponding screw hole, and the actuator unit is positioned on the frame.

Abstract: In an electronic apparatus provided with a display device, hinge portions for rotatably holding the display device on the apparatus body are provided in two portions on the display device, and the display device is so arranged that it is rotatable in one direction about one hinge portion or rotatable in another direction about the other hinge portion.

Abstract: A headphone like a cordless headphone including a pair of headphone units, a pair of supporting members, a headband and a pair of spring-biasing members. The headphone units are attached to one end of said supporting members. The headband is shaped in a substantially U-letter in cross section. When the listener wears the headband on the head, the headband is flexibly deformed to press the headphone units against the listener's ears. A pair of spring-biasing members are disposed between the supporting members and the headband. The spring-biasing members spring-bias the supporting members in the direction in which the supporting members are contracted relative to the headband. Frictional forces generated between the supporting members and the headband under the condition that the listener wears the headband on the head are substantially equal to the spring-biasing forces of the spring-biasing members.

Abstract: The speed reduction device for the electrically powered foldable rearview mirror includes a two stage speed reduction worm mechanism connecting an electrically powered motor for folding the rearview mirror which is fixed on a frame of a mirror body and a clutch gear engageably and removably mounted on a shaft which stands on a base and on which the mirror body is rotatably mounted. The first stage worm of the speed reduction worm mechanism is a twin gear including a worm screw portion with a coaxial spur gear on an end thereof. The second stage worm is a twin gear including a worm screw portion with a coaxial worm wheel on an end thereof. The spur gear of the first stage worm is engaged with a pinion mounted on an output shaft of the motor but the axis of the worm screw portion of the first stage worm is parallel with the motor output shaft.

Abstract: A sheet feeding device includes a feeding roller, which has a plurality of large-diameter portions and which rotates in a sheet-feeding direction, an inversely-rotating roller, which has a plurality of large-diameter portions alternately disposed with respect to the large-diameter portions of the feeding roller and which rotates in a direction reverse to the sheet-feeding direction, and an automatic adjustment unit for automatically adjusting the amount of overlap between the large-diameter portions of the feeding roller and the large-diameter portions of the inveresely-rotating roller in accordance with a sheet-feeding state.

Abstract: An interconnection structure for integrated semiconductor circuits has a Ti layer disposed on a semiconductor substrate, a TiON layer disposed on the Ti layer, and a TiN layer disposed on the TiON layer. A metallic interconnection layer containing Al is disposed on the TiN layer. The TiON layer is effective to prevent Al in the metallic interconnection layer and Si in the semiconductor substrate from being mutually diffused. The metallic interconnection layer can deposited, with a good coverage, in a connecting hole defined in an interlayer insulating layer on the substrate.

Abstract: To form an interconnection on a substrate, an interconnection material layer is deposited on a surface of a substrate having a step with a base layer of Ti-base metal disposed between the interconnection material layer and the substrate, and the interconnection material layer is etched by way of dry etching using a fluorine gas until a surface of the base layer is exposed. After the surface of the base layer is exposed, the substrate is heated to a temperature ranging from 250.degree. C. to 600.degree. C., and the interconnection material layer and the base layer are continuously etched by way of dry etching. The process allows an interconnection pattern to be reliably formed on the stepped substrate surface.

Abstract: After a field oxide is formed, only a bird's beak is removed by wet etching while a resist which exposes only the bird's beak is used as a mask. When the field oxide is formed, a latent stress acts on a semiconductor substrate under the bird's beak. Since the latent stress is released when the bird's beak is removed, crystal defects do not occur. Since the mask is used, the thickness of the field oxide except for the bird's beak is not decreased. In addition, since the wet etching is performed, crystal defects do not occur during the removal of the bird's beak.

Abstract: An audio reproduction system for use in an audio amplifier, for example, has a tone control unit for increasing or reducing a gain, or keeping an increased or reduced gain, of a signal if a particular frequency range of an audio signal supplied thereto, and a volume control unit for increasing or reducing the gain of the audio signal in a full effective frequency range. The tone and volume control units are ganged by a gain control unit, so that the gain which has been increased in the particular frequency by the tone control unit, can be controlled depending on the degree to which the gain has been increased by the volume control unit. The tone and volume control units may include variable resistors, respectively, whose movable contacts are interconnected. When the knob of the volume control unit is shifted toward a higher scale level position, the gain of the signal in the particular frequency range is lowered by the tone control unit, thereby preventing the reproduced sound from being distorted.

Abstract: An image recording apparatus inhibiting recording of abnormally-fed sheets includes conveying structure for conveying a sheet along a predetermined conveying path. Detection circuitry is provided for detecting a dimension of a sheet being fed by the conveying structure. A memory is provided for storing a reference value corresponding to a dimension of a sample sheet detected by the detection circuitry. Judging circuitry is provided for judging the abnormal feeding of a sheet by comparing the dimension of the sheet detected by the detection circuitry with the reference value stored in the memory. Reading circuitry is provided for reading information from the sheet, and a control circuit is provided for inhibiting the reading of the information from a sheet which is judged to have been abnormally fed, but for allowing the reading of the information from a sheet which has been judged to have been normally fed. Preferably, the detected dimension is the thickness and/or the length of the sheet.

Abstract: An image recording apparatus provided with a reader for reading information for identifying the original image; a recorder for recording the original on a recording medium; a transporting unit for transporting the original to the reader and the recorder unit; a detector for detecting the presence or absence of the identifying information on the original; and a controller for selecting whether or not to record the original according to the outputs of the detector and the reader.

Abstract: A strip-like member take-up device has take-up means for taking up a strip-like member being fed thereto, drive means for rotatively driving the take-up means, and an endless belt member for urging the strip-like member taken up by the take-up means against the take-up means and being moved in accordance with the rotation of the take-up means.

Abstract: An interference cancellation circuit which can remove the interference signal caused by other systems and contained in received signals. The interference signal can be cancelled even if the interference signal is not directly obtained or plural interference signals exist, or the interference signal is a wide band signal or raster interference simply by receiving two signals which have passed through different transmission paths, combining the main signals contained in each of the received signals in a manner to offset each other to the extract interference signal, and removing the interference signal component from the received signal based on the expected interference signal.