Abstract: A bearing apparatus includes a rotating member, a fixed member opposing the rotating member and an ink-like resin material. Opposing surfaces of the rotating member and the fixed member form a bearing part and the ink-like resin material is applied to at least one of the opposing surfaces by transfer printing.

Abstract: A linear actuator includes a first yoke part, a second yoke part opposing the first yoke part from a direction perpendicular to the axial direction thereof, an intermediate yoke part forming a first gap and a second gap, a coil disposed within a space delineated by the intermediate yoke part and the second yoke part, which forms a magnetic field between the first yoke part and the intermediate yoke part. The orientation this magnetic field is opposite between the first gap and the second gap, and orientation thereof alternates. The actuator further includes a magnet at one axial-direction end relative to the coil, which generates a fixed magnetic field in the two gaps, directed either from the intermediate yoke part toward the first yoke part or from the first yoke part toward the intermediate yoke part, and an armature disposed that is movable in the axial direction in the first gap and the second gap.

Abstract: An automatic balancing device includes a hollow housing case body rotated with a rotary body and having an annular space formed inside of the hollow housing case body. A plurality of balance balls are accommodated in the annular space of the hollow housing case body in a freely movable manner so as to cancel an imbalance of the rotary body. A film of a volatile rust preventing agent is formed on a surface of the plurality of balance balls.

Abstract: A motor has a stator assembly, a rotor assembly having a rotary shaft, a bearing unit that rotatably supports the rotary shaft with respect to the stator assembly, and a case body that generally houses the stator assembly and the rotor assembly. The case body includes a bottom surface section, a recessed concave section that is located radially inside the bottom surface section and concaves inwardly in an axial direction at an area opposing an excitation coil of the stator assembly, and a bearing retaining section that is formed radially inside the recessed concave section, wherein at least one part of the bearing retaining section is located more interior in the axial direction than the bottom surface section.

Abstract: A floppy disc drive apparatus includes a spindle motor, a magnetic head, a drive mechanism, a mechanism controller, a floppy disc controller, and a universal serial bus interface. The spindle motor rotatably drives a floppy disc at a rotational speed of 600 rpm or more. The magnetic head reads and records data on the floppy disc. The drive mechanism has an actuator that scans the magnetic head in a radial direction of the floppy disc. The mechanism controller controls the drive mechanism to thereby reproduce and record specified data on the floppy disc. The floppy disc controller transfers and receives data to and from the mechanism controller at a transfer rate of 1 Mbit/s or greater. The universal serial bus interface allows the floppy disc controller to transfer and receive data to and from an external apparatus at a transfer rate of 1 Mbit/s or greater.

Abstract: A motor includes a rotor equipped with a magnet magnetized in multiple poles, a stator yoke having claw poles with plural pole teeth disposed opposing to one another and arranged in a cylindrical shape extending in an axial direction and around an outer periphery of the rotor in a circumferential direction, a bobbin formed from a coil wound around the stator yoke, and a cylindrical motor case that houses the rotor, the stator yoke and the bobbin. The cylindrical motor case is formed from conductive material and uses as at least a part of the yoke. The motor case defines generally parallel planes tangential to an outer periphery of the coil, and has side wall sections extending in close proximity to the parallel planes and defining plane opening sections, and a part of an outer peripheral surface of the coil of the bobbin protrudes from the opening sections.

Abstract: A method for manufacturing a tool to form a dynamic pressure bearing in which at least one of the bearing surfaces has a plurality of pressure generating grooves defined by projections and in which lubricating fluid is contained in the grooves to provide lubrication between the bearing surfaces when they rotate relative to one another. A flat bevel is created at one or more of the corners of each of the projections that define the grooves thereby generating a wedge-shaped space that communicates between the grooves and the gap between the bearing surfaces. This wedge-shaped space facilitates passage of lubricating fluid from the groove to the gap when movement, normally rotation, occurs between the two bearing surfaces thereby minimizing wear between the surfaces.

Abstract: A motor has a stator including a coil bobbin with winding sections to be wound by windings and a terminal section. The terminal section outwardly protrudes in a radial direction of the coil bobbin and has fixed protruded terminal pins that are to be connected to winding start sections and wiring end sections of the windings. A curled case is placed over an exterior of the windings of the stator. The curled case has end sections in the peripheral direction and an opening section defined by the end sections of the curled case. The terminal section protrudes through the opening section, and an opening angle of the opening section is less than one half of the entire periphery of a circle.

Abstract: A manual magnetic card reader allows a card with a magnetic strip to be inserted in a card insert slot to a card stop position and then allows the card to be removed. The reader comprises a magnetic head for reading magnetic data recorded in the magnetic strip, a data editing portion for editing the magnetic data and a saving buffer for saving the magnetic data of the card that is read during card insertion. The magnetic data is read and saved in the saving buffer during the card insertion and the magnetic data is also read during card removal.

Abstract: A polygonal mirror fixing device comprising a rotary body, to which a polygonal mirror is adapted to be mounted, has a mounting circumferential surface in a center opening of the polygonal mirror and a mounting bottom surface which projects from the mounting circumferential surface in the radially outward direction. A mirror pressing member which is composed of the same material as the polygonal mirror is positioned to have contact with an axial end surface of the polygonal mirror, the other side from the end surface the contacts the mounting bottom surface. A mirror fixing member and a spring member are attached axially to the other side of the mirror pressing member to press the mirror pressing member in the axial direction. By the pressing force of the mirror fixing member in the axial direction, the mirror pressing member is pressed in the axial direction toward the mounting bottom surface so that the polygonal mirror is fixed.

Abstract: A temperature control method for a refrigerator includes providing a valve device, in which an inflow port where a refrigerant flows into, at least two outflow ports having a first outflow port and a second outflow port where the refrigerant flows out, and a valve element for performing opening/closing of the outflow ports are positioned in a sealed space. The method also includes providing a valve element drive device for driving the valve element. The method further includes controlling the valve element drive device, at the time a power source of the refrigerator is turned on, to reciprocate between a first mode as an OPEN-CLOSE mode and a second mode on a CLOSE-OPEN mode until a temperature in a first chamber where the refrigerant is supplied through the first outflow port, and a temperature in a second chamber where the refrigerant is supplied through the second outflow port, are lowered to reach to a prescribed temperature.

Abstract: A dynamic pressure bearing motor includes a rotary shaft, a rotary hub coupled to the rotary shaft, a dynamic pressure bearing sleeve that supports the rotary shaft by dynamic pressure and has a fallout stopper flange section that protrudes outward in the radial direction, a thrust dynamic pressure bearing section formed in an axial direction between the dynamic pressure bearing sleeve and the rotary hub, and a circular ring-shaped member that surrounds an outer circumference surface of the dynamic pressure bearing sleeve. The circular ring-shaped member has a hub mounting section that connects to an end surface of the rotary hub in a region radially outside the thrust dynamic pressure bearing section, and a main body section that protrudes inward from the hub mounting section.

Abstract: A stepping motor includes a ring-shaped stator core having a plurality of pole teeth erected from an inner circumferential edge portion, a coil winding wound around the pole teeth and a terminal pin part to which a terminal end of the coil winding is wound around. The terminal pin part is integrally formed and extended from the stator core and an entire surface of at least the terminal pin part of the stator core is covered with an insulating layer.

Abstract: A valve opening/closing drive device includes a main body case formed by press molding and connected respectively with an inflow pipe and an outflow pipe. A valve element is provided within the main body case for opening and closing an opening part and a motor having a stator part placed on the outside of the main body case and a rotor part positioned inside of the main body case and opposite to the stator part for opening and closing the valve element is also provided. The device further includes a holder member supported by the main body case and provided with a temporary holding part for temporarily holding the inflow pipe or the outflow pipe when the pipes are joined with the main body case.

Abstract: A motor with fluid dynamic pressure bearing is disclosed. The motor includes a dynamic pressure bearing member having a concave section that is concave in an axial direction, a rotary shaft that is rotatively supported by the dynamic pressure bearing, and a rotary member that is joined to the rotary shaft in one piece along a joint section between the rotary member and the rotary shaft, and rotatively driven by electromagnetic drive force, an expanded diameter section that is provided on the dynamic pressure bearing member. A fallout preventing member is provided on the rotary member, which overlaps the expanded diameter section of the dynamic pressure bearing member in the axial distraction to prevent the rotary shaft from filing out of the dynamic pressure bearing member.

Abstract: A magnetic card reader to read magnetic cards having either a first or a second format for the magnetic data on a stripe. The reader includes a first and second format processor for first and second patterns, a format selector to select one of the two format processor in accordance with a selection or indication command from a host computer. A format determinator determines if the format read out from the card is consistent with the indicated format.

Abstract: An optical element including a binary blaze grating formed thereon, wherein the binary blaze grating is formed so as to have step differences formed by a number of levels produced by mechanical processing. The number of levels is equal to or more than 5 and the height of the step difference is greater than or equal to 1 &mgr;m.

Abstract: A DC motor with brushes includes a rotary shaft, an armature rotatable with the rotary shaft, a stator magnet disposed opposite to the armature, a commutator affixed on the side of the armature, and a pair of inside and outside brushes retained by a brush holder in a manner that the brushes are brought in contact with a peripheral surface of the commutator. The pair of brushes has an identical configuration. The outside brush is bent in a direction away from the other brush when the pair of the brushes is retained by the brush holder. The outside brush is further bend when in contact with the commutator. The inside brush has an end section extending toward an intermediate point of the outer brush in a longitudinal direction thereof. Each of the outside brush and the inside brush has a base section that is affixed to a terminal and an end section that is brought in contact with the commutator.

Abstract: This invention relates to a hot-stamping device comprising a stamping arm with one end being a free end, a stamping section adapted to apply pressure to a hot-stamping foil positioned at the free end to a value-added medium such as ticket wherein the hot-stamping foil is transferred to the value-added medium. A first cam, in contact with said stamping arm, is used for moving a stamping section to close proximity of the value-added medium. A first drive section driving said first cam and a second cam for bringing pressure-exerting load to bear on the stamping section is used to move to close proximity a value-added medium. A second drive section is used for driving a second cam.

Abstract: The accuracy of demodulation of data from a magnetic stripe is enhanced by comparing time intervals between successive peaks of each character of the signal read from the stripe against a set of predetermined reference successive peak time intervals for the data characters.