Abstract: An electroacoustic transducer 1 includes a base 24 made of a magnetic material; a magnetic core 22 made of a magnetic material and upstanding on the base 24; a diaphragm 20 made of a magnetic material and spaced from a leading end of the magnetic core; a magnetic field generating member 25 cooperating with the base 24, the magnetic core 22 and the diaphragm 20 to constitute a magnetic circuit, for supplying a static magnetic field; a coil 23 placed around the magnetic core, for supplying an oscillating magnetic field to the magnetic circuit. The magnetic field generating member 25 constitutes a multiplex ring structure in which a magnet 25a and a support ring 26 are integrated together, whose faces opposing the diaphragm 20 have respectively magnetic poles of the same polarity.

Abstract: A cutter apparatus 6 includes a rotary cutter 10 which is rotatably supported and has a cutting edge formed on the circumference thereof, a fixed cutter 20 cooperating with the rotary cutter 10 to hold a sheet member between them, a carriage 11 for moving the rotary cutter 10 in a reciprocating manner along a cutting line, and a stopper 22 used to switch a full cutting mode in which the cutting point of the rotary cutter 10 is allowed to pass through the side end of a record sheet S to a partial cutting mode in which the cutting point of the rotary cutter 10 is caused to stop before the side end of the record sheet S or vice versa.

Abstract: Every time the cumulative number of revolutions of a spindle rotating motor reaches a cumulative number of revolutions set in a data table, a CPU reads out, from a data memory section, moving positions of a workpiece and tool at the reached cumulative number of revolutions and the next cumulative number of revolutions, and a spindle rotational speed instruction value at the reached cumulative number of revolutions. The CPU sets the reached cumulative number of revolutions as a start point and the next cumulative number of revolutions as an end point, and divides the interval between the start and end points at predetermined timings. The CPU determines moving positions of the workpiece and tool at divided timings on the basis of the readout moving positions of the workpiece and tool. The CPU outputs the spindle rotational speed instruction value as a spindle rotational speed instruction signal to a reference spindle rotational speed setting circuit to control the rotational speed of the spindle rotating motor.

Abstract: An electrical contact technique for use in the semiconductor device inspection equipment is disclosed. There are used one or more pyramid-shaped contactors projecting toward an objective semiconductor device to be tested. The contactor is brought into contact with the projection electrode of the objective semiconductor device through the edge line or the slant surface thereof. Accordingly, only the side portion of the projection electrode is pressed by the edge line or the slant surface of the contactor, thus the projection electrode being prevented from being damaged at the tip portion thereof.

Abstract: A bobbin unit includes a base portion and a coil winding portion on which a conductor is wound. A hole is formed in a central part of the base portion to allow an armature to pass through. Coil side terminals to which ends of the conductor are fixed and signal input terminals to which an external signal is entered are provided at opposite ends of the base portion with the hole located in between. The coil side terminals are electrically connected to their corresponding signal input terminals inside the base portion. A coil is formed on the coil winding portion by winding the conductor. The ends of the conductor are wound around the respective coil side terminals and fixed thereto by arc welding. Since the conductor is electrically connected to the signal input terminals when the ends of the conductor are fixed to the coil side terminals, connection of the ends of the conductor constituting the coil to the signal input terminals is made easy.

Abstract: An ultrasonic motor 1 comprises a stator-side elastic member 30 having a rotationally symmetrical shape, a rotor-side elastic member 40 having a rotationally symmetrical shape, a stator-side piezoelectric element 31 for imparting vibrations to the elastic member 30, a rotor-side piezoelectric element 41 for imparting vibrations to the elastic member 40, an output shaft 10 rotating integrally with the elastic member 40, a rotary transformer 60 for supplying power to the piezoelectric element 41 in non-contacting fashion, and housings 21 and 22 for accommodating therein the above-enumerated elements, wherein of three transformer circuits in the rotary transformer 60, a middle transformer circuit C2 and an outermost transformer circuit C3 are used as a two-phase drive power transformer circuit. This construction achieves stable power supply to the rotor side.

Abstract: The present invention relates to an apparatus for creating a pattern on a workpiece, such as a photomask, a semiconductor wafer, an electronic interconnect device, a printed circuit board, a display panel, a microoptical device or a printing plate, whereby a pattern with less visible edges is created. The apparatus comprises a source for emitting light pulses, a spatial modulator (SLM) having several pixels, a projection system, an electronic data delivery system, and a precision mechanical system moving said workpiece relative to said projection system. Further, it comprises an electronic control system coordinating the workpiece, the modulator and light sources, so that a large pattern is stitched together from the partial images created by the sequence of radiation pulses, where adjacent images being stitched together are overlapping at the common boundary, and the overlapping images have essentially the same pattern in the overlap region and a reduced light intensity.

Abstract: An electrical connection apparatus includes a lattice having a plurality of openings arranged in each of the X- and Y-directions intersecting with each other, and a probe sheet including a plurality of probe elements provided in each opening, each probe element having a contact portion Each probe sheet is arranged on one surface side of the lattice such that the contact portion is positioned to correspond to the opening, and further, the probe sheet is divided into a plurality of probe regions which are separated from each other by one or more boundary portions defined between adjacent opening regions, each including one or more openings.

Abstract: In cutting a high-accuracy thread, a control unit (CPU) uses a first position data calculation program to determine the moving positions of a workpiece and tool every predetermined rotational angle of a spindle rotating motor. The control unit stores the determined moving positions of the workpiece and tool in a first position data table memory, and outputs the determined moving positions as a workpiece position instruction signal and tool position instruction signal to a workpiece feed control circuit and tool feed control circuit every predetermined rotation. In cutting a low-accuracy thread, the control unit uses a second position data calculation program to determine the moving positions of the workpiece and tool every predetermined time interval.

Abstract: A probe card including a plurality of probe blocks can be easily put together substantially in a lattice-like form, and four chips adjoining around the intersection portion of imaginary boundary lines intersecting at right angle each other form a cross-like shape to be tested simultaneously. A plurality of probe blocks with the first and second probe group including a plurality of probes are set up on a base plate substantially in the lattice-like form by a probe set-up means. The needle points of the first and second probe groups are respectively located across the imaginary line so as to oppose to each other. A probe blocks located around the lattice intersection portion are fitted to the base plate such that the needle point parts of the probes located in the vicinity of the lattice intersection portion are positioned on the same side with respect to their needle rear part.

Abstract: A test tube includes a dot code on the surface thereof which is readable with an optical reading mechanism wherein the dot code is formed on the test tube by laser burning.

Abstract: A Printer includes an interface for exchanging signals with an external host, an interface for exchanging signals with a peripheral device, a station for printing a recording medium based on print data supplied by the external host, and a CPU for performing an output through operation to transmit data received from the external host via interface to the peripheral device via interface, and an input through operation to transmit data received from the peripheral device via interface to the external host via interface. This construction allows connection of a larger number of peripheral devices than the number of connection ports of the external host.

Abstract: Disclosed are printers capable of easy and precise head gap adjustment. In the printer, a cam mechanism 61 consisting of a fixed cam 62 and a rotatable cam 63 put between each end of a platen 10 and a swing frame 4. The platen 10 is normally biased to the swing frame 4 by a torsion coil spring 14. A driving gear 64 rotatably supported on the swing frame 4 is engaged with a driven gear 63a formed on the rotatable cam 63. The driving gear 64 is rotated by an operating tool 66 inserted from above, whereby the rotatable cam 63 is rotated by gear drive. In accordance with the rotation of the rotatable cam 63, the platen 10 vertically moves with the fixed cam 62, whereby head gap with respect to a printing head is adjusted. The driving gear 64 can be unrotatable by securing a screw 65 as a rotatable axis thereof by operation from above, whereby the platen 10 is secured.

Abstract: Computer apparatus 10 includes mother board 10M, bracket 12 mounted on the mother board, a circuit board assembly 10A installed in the bracket, and a pair of assembly latches 13L and 13R. The mother board has connector slot 12E for electrically engaging corresponding contacts 10E on the circuit board assembly. The bracket has an elongated base member 12M positioned proximate the connector slot, and a pair of spaced retaining posts 12L and 12R extending generally away from the mother board, one at each end of the base member. The bracket receives the circuit board assembly into the space between the retaining posts. The circuit board assembly has heat conductive thermal plate 14 between circuit board 10C and heat sink 14H. The thermal plate has two end edges 14L and 14R, one proximate each retaining post, which are engaged by the retaining posts during and after installation. Each retaining post has a latch port 12P extending therethrough.

Abstract: Disclosed is a processing apparatus for a rewritable card having a printing layer made of a heat-reversible recording material on which erasing/printing processes of images are repeatedly performed while traveling the card in a processing direction. The apparatus comprises an erasing/printing device for performing erasing/printing processes with respect to the printing layer; a heating device for performing heating process with respect to the printing layer; a temperature measuring device for measuring at least one of the temperature of the rewritable card and the ambient temperature in erasing/printing processes; and a control device for controlling the erasing/printing processes by the erasing/printing device and the heating process by the heating device according to the temperature measured by the temperature measuring device.

Abstract: An electroacoustic transducer, which has a diaphragm, a support member for supporting the diaphragm, a pole piece placed inside the support member and comprising a core and a base, a coil wound around the core, and a magnet placed between the support member and the coil, in which the diaphragm is made of resin to which a magnetization is applied.

Abstract: A printer 80 integrally comprises a printing section 81 for printing on a recording medium such as a cut sheet S and continuous paper L2 based on printing data transmitted from an external host unit H, a control panel 70 containing an indicator section for indicating operating states of the printing section 81, a display panel 60 for displaying data transmitted from the host unit H to the printing section 81 and instructed to be displayed, an interface 86 for transmitting/receiving signals between the host unit H and the printing section 81 and interfaces 87 and 62 for transmitting/receiving signals between the printing section 81 and the display panel 60. It is possible to securely prevent disagreement of printed content and displayed content and to realize down-sizing and simplification of the system structure by constructing a printer as described above.

Abstract: An electroacoustic transducer, which has a diaphragm, a support member for supporting the diaphragm, a pole piece placed inside the support member and comprising a core and a base, a coil wound around the core, and a magnet placed between the support member and the coil, in which the pole piece or at least the core thereof is made of resin to which a magnetization is applied.