Abstract: A PC card wherein a housing of a socket connector is provided with a guide boss and a stopper protruding on the circuit board side, and with a cutout for fitting the guide boss in the circuit board. In this cutout the guide boss is fitted to position the socket connector in the direction of x. And the forward end of this stopper is held in contact with the circuit board to position in the direction of y, thus facilitating positioning of a socket connector in relation to a circuit board without a fear of socket connector displacement in subsequent processes.

Abstract: In a magnetoresistive magnetic head having a laminate composed of a magnetoresistive (MR) layer showing the magnetoresistive effect, a SHUNT layer as a non-magnetic layer and a soft adjacent layer (SAL) for applying a transverse bias magnetic field to the MR layer, the MR layer and the SAL are made of the same Ni.sub.81 Fe.sub.19 magnetic film. Since the SAL is magnetically saturated in the same direction as the direction of leakage flux of a recording medium (y direction), permeability thereof in the y direction decreases, and the MR effect function therein can be restricted. Although the MR layer and the SAL have the same specific resistance .rho., a sufficient detection current can be made to flow through the MR layer and a high-precision magnetic detection output can be obtained by making the MR layer thicker than the SAL.

Abstract: A two-stage movement seesaw switch apparatus of the light irradiation type which is compact and superior in operation feeling. The two-stage movement seesaw switch includes a pair of operation plates disposed immediately below a manually operable knob. Two sets of push switches, each set including two push switches, are disposed such that a straight line interconnecting the push switches of each set extends obliquely with respect to a center axis of pivotal motion of the manually operable knob. The push switches are actuated by contact with the operation plates when the manually actuated knob is pivoted. Each of the operation plates has an opening formed therein for passing light emitted from an LED therethrough and has a pair of projections formed thereon next to the opening.

Abstract: As an antiferromagnetic layer achieving exchange anisotropic coupling with a ferromagnetic layer, any Mn alloy of Ru-Mn, Rh-Mn, Ir-Mn, Pd-Mn, and Pt-Mn alloys is used. The content of each element is 10 to 45 atomic % for Ru, 10 to 40 atomic % for Rh, 10 to 40 atomic % for Ir, 10 to 25 atomic % for Pd, and 10 to 25 atomic % for Pt, respectively. Since the alloy exhibits excellent corrosion resistance and exchange anisotropic magnetic field in spite of its irregular crystal structure, no high temperature treatment is required in order to achieve a change in the crystal structure. The alloy is durable to high temperature due to a decreased change in the exchange anisotropic magnetic field.

Abstract: A thermal printer that performs thermal printing by employing a commonly-used thermo-sensitive recording sheet. In the thermal printing, a thermal head starts heating the recording sheet from the back side of a base that covers a recording surface in order to print, so that the recorded information is effectively hidden from view. When the thermal printer performs thermal printing by using a two layer thermo-sensitive recording sheet, high quality images with sharp edges can be reliably recorded. The thermal printer uses two types of thermo-sensitive sheets to perform thermal recording.

Abstract: A vibratory gyroscope including a planar elastic vibrator having vibrator piezoelectric material layers formed on both the front and back sides. The vibrator includes a base portion and three parallel elastic pieces extending from the base portion such that the a center elastic piece is located between two side elastic pieces. Electrode layers are formed over the piezoelectric material layers which cause both the side elastic pieces and the center elastic piece to vibrate in a plane, such that the vibrations of the center elastic piece are 180.degree. out-of-phase with the side elastic pieces. When the thus-vibrated vibrator is rotated, the elastic pieces are vibrated in directions parallel to the plane due to the Coriolis force. These deformations are detected as voltage changes across the piezoelectric material layers, and the voltage changes are used to determinate the angular velocity of the vibrator.

Abstract: An optical disk unit wherein a disk rotating speed is automatically adjusted for reading optical information from various optical disk types, each optical disk type requiring a different rotating speed. The optical disk unit moves an optical head to a track corresponding to a program start position, then moves the optical head to a second track which is a predetermined distance from the first track. The program time information is then read from the second track and compared with preset values. When the program time information is less than a first preset value, the optical disk unit rotates the disk at a slow speed (for example, such that a linear speed of the optical head is 1.2 m/s relative to the disk). When the program time information is less than the first preset value and greater than a second preset value, the optical disk unit rotates the disk at an intermediate speed (for example, 1.3 m/s).

Abstract: An antitheft security tag is used in combination with an article surveillance security system. The antitheft security tag comprises a tagging part to be tagged to an article, formed by looping a two-core cable having two insulated copper wires or the like, a connecting part formed out of a cable, to be connected to the article surveillance security system, a joining part for joining the tagging part to the connecting part, and a resistor contained in the joining part and connected in series to the wires of the two-core cable forming the tagging loop. One end of the connecting part to be connected to the article surveillance security system is provided with a connector to be connected to the article surveillance security system. The article surveillance security system monitors the resistance of the antitheft security tag for article surveillance and detects unauthorized tampering with the antitheft security tag through the detection of a change in the resistance of the antitheft security tag.

Abstract: An extruding apparatus for intermittently supplying a predetermined quantity of highly viscoelastic material, e.g. food material. The apparatus has a hopper having a supply pump, a supply pipe having one end connected to the pump and the other end to an extrusion valve, and an accumulator (constant pressure device) mounted to the extrusion valve for maintaining the pressure of the food material in the extrusion valve at a predetermined constant pressure.

Abstract: A thermal transfer printer in which when a printing head is soiled, the debris on the printing head can be removed automatically. The printing head movable to and from a platen is mounted on a carriage capable of being reciprocated along the platen, and a cleaning pad is disposed on an extension line of the platen downsteam or upstream in the printing column direction of the platen.

Abstract: A giant magnetoresistive material film includes at least two ferromagnetic layers of a NiFe alloy or NiFeCo alloy, which are formed on a substrate through a nonmagnetic layer of Au, Ag, Cu or Cr, wherein magnetization of at lest one of the ferromagnetic layers is pinned by a coercive force increasing layer of .alpha.-Fe.sub.2 O.sub.3 provided adjacent thereto and having a thickness of 200 to 1000 .ANG. so as to increase coercive force of the ferromagnetic layer, and the other ferromagnetic layer has free magnetization so as to produce a change in resistance at a low magnetic field. The present invention also provides a method of producing the giant magnetoresistive material film and a magnetic head provided with the giant magnetoresistive material film.

Abstract: An MR head includes a soft magnetic (SAL) layer, a nonmagnetic (SHUNT) layer, and a magnetoresistive (MR) layer, which are formed on top of each other, with shielding layers being formed on the upper and lower sides of these layers. The shielding layers, which are formed, for example, of an Fe-based fine crystalline material, are heated in a magnetic field, so that the magnetic permeability in the direction of the normal of the recording medium (the y-direction) of the shielding layers is higher than the magnetic permeability in the track-width direction (the x-direction) of the same, whereby it is possible to enhance the shielding effect of the shielding layers with respect to a leakage magnetic field from the recording medium. Further, due to the relatively low magnetic permeability in the x-direction of the shielding layers, a bias magnetic field imparted to the magnetoresistive layer from the hard bias layer is not easily drawn in the shielding layers.

Abstract: A method of transferring recording data to a recording device for preventing the slowdown of effective recording speed by determining beforehand the available memory capacity of an input device and by transferring the recording data in an optimum manner to the recording device. The available memory capacity of an input device 1 is determined. When the available memory capacity of the input device 1 is sufficient enough to store the recording data of one cycle by the recording head, the recording data of one cycle is transferred to the recording device 2 on a recording cycle basis. When the available memory capacity of the input device 1 is not sufficient enough to store the recording data of one cycle by the recording head, the recording data is transferred to the recording device 2 on an element-by-element basis.

Abstract: A PC card connector has an injection mechanism which is improved so as to make it possible to push a PC card in a substantially straightforward direction, in which the PC card is withdrawn, without converting rotary motion into linear motion. The PC card connector is further improved so as to be able to assure the constant smooth withdrawal of the PC card without the need of a complicated or large-sized structure. The PC card connector is provided with a push rod which is pressed to remove the PC card, an eject lever which is supported by a first fulcrum in a pivotal manner, and which has one end engaged with the push rod and has a first claw at the other end to eject the PC card, and a rotary arm which is supported by a second fulcrum in a pivotal manner and has at one end a second claw to eject the PC card, and which has the other end connected to a predetermined location in the eject lever.

Abstract: A rotary connector including a structure for connecting a flat cable to a lead block. The lead block includes a plurality of parallel joint conductors extending through a resin member. A pair of holding arms extend perpendicularly from the resin member. A window is formed in the resin member through which portions of the joint conductors are exposed, and a pair of projections are provided adjacent the window. The flat cable includes parallel conductors sandwiched by insulating films. A connecting portion of the insulating films is provided at a leading end of the flat cable, and alignment holes are formed in the connecting portion. Portions of the conductors are exposed between the flat cable and the connecting portion, and grooves are formed in sides of the flat cable adjacent the exposed conductor portions.

Abstract: A rotary connector including a first housing rotatably connected to a second housing and forming an annular space therebetween, and a flexible cable wound within the annular spacing. According to a first aspect, the conductors of the flexible cable associated with an airbag circuit are spaced further apart than conductors for other circuits mounted on a steering wheel. A direct connector includes first terminals connected to the airbag conductors and second terminals connected to the other conductors. The first and second terminals are spaced apart and/or divided by a divider to prevent interference during assembly. In accordance with the second aspect, a locking member for preventing relative rotation of the first and second housings prior to assembly on a vehicle includes a cover portion for covering an open end of the direct connector.