Abstract: A head feeding device includes a screw shaft having a thread groove formed with a predetermined pitch, a driver for turning the screw shaft, a head guided in the axial direction of the screw shaft by a shaft bearing sliding on a surface of the screw shaft, and an engagement member that engages in the thread groove of the screw shaft and converts the turning force of the screw shaft into the axial head moving force. A second groove for containing a lubricant is formed on the screw shaft having the same pitch as that of the thread groove. The second groove retains lubricant scraped out of the thread groove by the engagement member. Therefore, lubricant is reliably supplied to the sliding surfaces between the screw shaft and the shaft bearing, thereby eliminating problems caused by increased friction or seizure, and thereby improving the head feeding accuracy.

Abstract: The present invention provides a method of removing a photoresist film, which exhibits the high ability to remove photoresist and excellent safety and handling properties such as workability, In the removing method, the photoresist film is removed by chemical decomposition in an inorganic aqueous solution under ultraviolet-light irradiation. The inorganic aqueous solution is an aqueous solution of peroxomonosulfate or an aqueous solution containing 4.5 to 36 wt % of sulfuric acid and 0.05 to 0.8 wt % of hydrogen peroxide.

Abstract: This invention provides a dot printer which reads a manuscript and prints on a recording medium automatically only by placing a manuscript and a recording medium. A thermal head and an image scanner are provided facing to a platen, a feeding mechanism for feeding a desired manuscript or recording medium between the platen, and the thermal head and the image scanner is provided, an identification marker is formed on the upstream side of feeding of the manuscript, and a controller for controlling the operation is provided so that the identification marker is read using the image scanner to recognize that the medium is a manuscript fed from the feeding mechanism, then, the image scanner starts to read the manuscript.

Abstract: A chucking device for receiving and rotating a magnetic disk, the magnetic disk having a centrally-located drive spindle receiving hole and an off-center alignment hole. The chucking device includes a turntable, a drive spindle centrally-located on the turntable, and a support plate including a drive pin and a contact wall. The contact wall is formed adjacent the drive pin and is used to rotate the magnetic disk by pressing against an inner wall of the alignment hole. The drive pin is made of a low friction material, such as synthetic resin, and extends above the contact wall such that when the magnetic disk is mounted on the disk chucking device, the drive pin slides easily against the hub until the drive pin and contact wall are received in the alignment hole.

Abstract: An operation inputting apparatus is disclosed by which, even if a load detection output remains after an operation of a stick type operation member is stopped by an operator, a load detection output which coincides with stopping of the operation of the stick type operation member can be obtained. A pressure detection sensor detects a load force applied to the stick type operation member upon operation of the stick type operation member, and a comparison circuit compares a load detection value obtained from the pressure detection sensor with a preset load value. A timer circuit adjusts a count value in response to a result of the comparison and detects the count value equal to zero to produce a zero detection output. A judgment level production section sets two judgment levels for presence or absence of an output in response to the zero detection output.

Abstract: A security apparatus for a vehicle including a transmitting device and a receiving device either of which is mounted on the vehicle, the security apparatus including a control section for altering a processing mode of one of the transmitting device and the receiving device when an operation switch mounted on the vehicle is operated in an abnormal fashion. The operation switch may be a radio ON/OFF switch or an ignition switch, and the abnormal operation may be turning on and off the switch a predetermined number of times within a predetermined period. When this abnormal operation is detected by the control section, the control section permits the identification code of the security apparatus to be rewritten with a new identification code transmitted from the other of the transmitting device and the receiving device.

Abstract: The electrical insulation performance between a lower shield layer and a main electrode layer is improved in a magnetoresistive head using a magnetoresistive element. A lower gap layer made of alumina is formed on the surface of the lower shield layer, and an MR element, a longitudinal bias layer, and an upper gap layer are formed thereon. In a portion facing a magnetic medium, the MR element, the longitudinal bias layer, and the gap layers appear between the lower shield layer and the upper shield layer, and the gap length GL is determined by the lower gap layer and the upper gap layer. In the portion other than the portion facing the magnetic medium, the lower gap layer and the upper gap layer are interposed between the main electrode layer and the lower shield layer, and the main electrode layer is connected to the longitudinal bias layer through the upper gap layer.

Abstract: A drive voltage is supplied to a piezoelectric oscillator from an A.C. drive power source. Attached to an electrode of the piezoelectric oscillator is a loop circuit in which an amplifier having a (N+1) voltage amplification factor and an electrostatic capacitor are connected in series. When the electrostatic capacity is set to 1/N of a damping capacity of the piezoelectric oscillator, the current flowing through the damping capacity is replaced and shared by current from the electrostatic capacity, thus the drive current will not be consumed by the damping capacity. Therefore, a condition where the damping capacity is minimized depends on a capacity value of the electrostatic capacity and amplification factor of the amplifier only and does not depend on the frequency.

Abstract: An electronic device mounting structure, which allows threaded engagement with a standardized male screw compliant with the JIS, DIN or the like without having to perform tapping on a plate material, includes an engagement hole having first and second cutouts formed in a peripheral edge section thereof, wherein the peripheral edge section of the engagement hole is deformed in the plate thickness direction such that there is a positional deviation from a first peripheral edge end section bordering on the first cutout toward a second peripheral edge section bordering on the second cutout by approximately one half of the pitch of a standardized male screw compliant with the JIS and a further positional deviation from a third peripheral edge end section bordering on the second cutout toward a fourth peripheral edge end section bordering on the first cutout by approximately one half of the pitch, with the result that there is a positional deviation corresponding to one pitch of the male screw between the first and

Abstract: A magnetic head of the type which includes a pair of magnetic cores joined to each other through the intermediation of gap layers, with Fe-type metal magnetic thin films being arranged between the gap layers and the magnetic cores, the metal magnetic thin films being formed of a magnetic material which can be represented by the composition formula: Fe-X-M-C, with the concentration of the element X being higher in the surface portions of the metal magnetic thin films than in the other portions thereof. In the above composition formula, X represents one or two or more of the following elements: Al, Si, Cr, Mo and W, and M represents one or two or more of the following elements: Ti, V, Zr, Nb, Hf and Ta. Due to this construction, the metal magnetic thin films can contain the element X at high concentration in the surface portions thereof, which element combines with oxygen in the surface portions to generate an oxide coating, thereby providing a magnetic head excelling in corrosion resistance.

Abstract: A color-image data control method for storing color image data inputted from an external device in a memory provided in a printer, for reading the color image data stored in this memory and for printing the read color image data by use of a print head, wherein the color image data is data obtained by performing a raster scan on each color component of the color image data according to the arrangement of the printing elements of the print head, wherein the memory provided in the printer has capacity sufficient to store all color components of color image data to be printed by use of all printing elements of the print head, wherein image data corresponding to each color component is read from the memory provided in the printer as a unit to be printed by all of the printing elements of the print head and is used to print one of the color components of an image, wherein color image data respectively sent from the external device are serially stored in spaces of the memory provided in the printer color, which are

Abstract: A magnetoresistive head having a soft magnetic layer which comprises a Co--Fe--Ta amorphous magnetic material and applies a transverse bias magnetic field to a magnetoresistive layer. The amorphous magnetic material has such properties that the induced anisotropy is readily attained in the lateral direction, the rate of magnetoresistance change (.DELTA..rho./.rho.) is low, the magnetization stability in the lateral direction is enhanced, and Barkhausen noise is decreased. Since tantalum, one of the amorphous elements, sets the magnetostriction toward the minus side while iron (Fe) sets the magnetostriction toward the plus side, it is possible to control the magnetostriction of the soft adjacent layer by selecting the iron (Fe) concentration and to prevent the magnetoelastic effect from disturbing the magnetization stability in the lateral direction.

Abstract: A thermal printer which is designed to reduce costs by reducing the number of parts, and which can easily drive a carriage using an inexpensive low-power drive motor by reducing a load acting on the part of the carriage which carries a thermal head. The carriage is provided so as to travel reciprocatively along a platen. A thermal head is directly attached to the opposite side of the carriage to the platen without any intervening member. A biasing member is disposed for urging the carriage toward the platen.

Abstract: A curl straightening device for removing a curl from a paper sheet which is caused during printing by a printer. The curl straightening device includes a supporting platen which supports a curled paper sheet after printing is performed on a first surface of the paper sheet, a carriage which is reciprocatingly movable along the supporting platen, and a pressing member, mounted on the carriage and positioned on an opposite side of the paper sheet from the platen. The pressing member presses against a second surface of the paper sheet as the carriage moves along the platen so as to remove the curl from the paper sheet which is caused by printing on the first surface of the paper sheet.

Abstract: A cursor control device is provided which has good operability and can reflect clearly an operator's natural motion in accordance with a qualified value (conversion coefficient). The cursor control device is constituted of an operation plate (5) with an operation surface (7), an operation pressure detector with a pressure-sensitive sensor (3) arranged on the back surface of the operation plate (5) to detect a touch pressure by a control member, and an arithmetic circuit. The arithmetic circuit performs an arithmetic operation of both the coordinate position and the moving rate of the control member using a detection signal from the operation pressure detector, and the movement of a cursor based on a first qualified value and a second qualified value. The first qualified value is determined according to the movement and the moving rate of a coordinate position. The second qualified value is determined according to the touch pressure of the control member.

Abstract: A rotary connector which prevents separation of a resilient tongue from a flexible cable so as to prevent buckling. The rotary connector includes first and second housings rotatably connected together and forming an annular space therebetween. A flexible cable and a movable member are received in the annular space. The movable member includes a turntable having a stationary cylinder and a reversing roller, the stationary cylinder including a guide projection. The flexible cable is wound in opposite directions on opposite sides of the movable member and includes a U-shaped reverse portion extending through a gap between the stationary cylinder and the reversing roller. A resilient tongue having a free end portion substantially formed in a linear shape in an unloaded condition is affixed to an inner surface of the flexible cable and to an inner cylinder portion of the second housing.

Abstract: A key top mounting structure for connecting a key top to an operating lever of, for example, a power window control switch of a vehicle. The key top mounting structure provides a precise switch operating mechanism which can be used in both a push-push type and a push-pull type switch, thereby reducing production costs by providing component parts common to a variety of key top shapes. The key top mounting structure according to the present invention is provided with an operating lever having an opening surrounded by an upper wall and a pivot shaft for attaching the operating member to a switch body, and a key top having an engaging protrusion and a frame member surrounding the engaging protrusion and spaced therefrom by a gap having a predetermined width.

Abstract: A disk-selective disk system is capable of holding a plurality of disks such as compact disks (CDs), mini-disks (MDs), CD-ROM disks, floppy disks, or other types of disks for reproducing and recording data, wherein a selected disk can be ejected from a disk container even if another disk is loaded in the disk drive and is being driven for reproduction or recording. Cartridges each having a disk therein are inserted into a disk container through an insertion slot. A movable base, which moves up and down in a housing, is provided with a drive unit, and any of the cartridges can be taken into a cartridge holder by selective movement of the movable base for reproduction.

Abstract: A bifurcated computer keyboard including separated keyboard segments adjustably mounted on supports. The supports include an upper wall which is inclined relative to a supporting surface. The keyboard segments include beveled protrusions which are rotatably mounted on the upper wall of the supports. The keyboard segments are adjusted to a desired tilt (side to side) angle by rotating the supports relative to the keyboard segments. A retaining member is provided to maintain the keyboard segments at a predetermined spacing.

Abstract: A reading apparatus and a recording apparatus having the reading apparatus which can reduce storage capacity for storing read data and, because the read data processing modes can be switched according to the type of documents to be processed, perform fast and proper document reading operation. If a document to be processed is an image document, the controller operates in the image processing mode in which M pieces of read data are sampled out of N pieces of read data and a mean value of the M pieces of read data is calculated to be stored in the memory as gradation data of one pixel. If the document is a text document, the controller operates in the text processing mode in which read data of one read unit of the image scanner is digitized by a threshold to be stored in the memory. Switching between these two processing modes is performed by the conversion processing operator section in the controller.