Abstract: A stator winding is manufactured by a forming step, a winding step, and a expanding step. In the forming step, an S-shaped offset shape is formed on a conductor part corresponding to a coil end part. Thereby, in a coil end part, it is possible to provide an expected shape stably at the coil end part. The conductor is wound around a bobbin in the winding step. In the winding step, a twisted shape is given to the conductor parts to be the inclined part of the coil end and the conductor part to be accommodated in a slot. In the expanding step, a preform product removed from the bobbin is expanded into a shape of the stator winding.

Abstract: An apparatus and method are disclosed that may include a contact pin; and a plurality of loops of conductive wire, coated with insulation material, disposed in proximity to the contact pin, wherein along at least one portion of the conductive wire, at least one edge of the contact pin extends through the insulation material and thereby forms conductive electrical contact with the conductive wire.

Abstract: A method of manufacturing a magnetic head includes the steps of: forming a pole-layer-encasing layer having a pole-layer-encasing section; and forming a pole layer in the pole-layer-encasing section. The pole layer includes a first layer, and a second layer formed thereon. The step of forming the pole layer includes the steps of: forming an initial first layer by physical vapor deposition; etching the surface of the initial first layer by dry etching so that the initial first layer becomes the first layer; and forming the second layer on the first layer.

Abstract: A coil-holding assembly for an electrical machine has coil holders made of plastic and on which coils of a stator can be wound. The coil holders are formed and pivotal on an outer edge of a planar central plastic support by integral film hinges between a winding position parallel to a plane of the support and a bent-up position perpendicular to the plane. Thus the coils can be wound on the holders in the parallel position thereof and the holders are then moved into the bent-up position for use in the electric machine.

Abstract: A method of manufacturing a coil assembly unit comprises steps of coil forming, weaving, compressing steps. In the forming step, each coil wire is formed which provides linear portions and turn portions each connecting linear portions, during which bent portions are formed at both ends of each linear portion, the bent portions being bent so that mutually adjacent linear portions are deviated from each other. In the weaving step, the coil wires are mutually woven in turn, in which the turn portions intersect in turn. All the coil wires are subjected to the weaving step in turn to produce a woven coil assembly. In the compressing step, the woven coil assembly is compressed by compressing the woven coil so that each bent portion is deformed to be linear to allow the mutually adjacent linear portions to come closer to each other, thus producing the coil assembly unit.

Abstract: A manufacturing method of a winding assembly of a rotating electrical machine using a rotation block and a fixed block and a manufacturing apparatus used for the same. The rotation block includes a rotation surface rotatable around a rotation axis, and the fixed block includes a first surface and a second surface opposite to each other and a shaping surface. The shaping surface is formed between end parts of the first and the second surfaces, is made to have an almost semicircular shape with the rotation axis as the center, and extends along the rotation axis. Plural wire rods are simultaneously fed from the first surface of the fixed block to the rotation surface of the rotation block, and the wire rods positioned on the rotation surface are bent by rotation of the rotation block.

Abstract: In a magneto optical device is which a laser beam is shone in operation through a coil (5), the coil holder (6) comprises a concavely curved exit surface with a radius of curvature R lying between 0.5 D and 15 D (0.5 D?R?15 D) where D is the diameter of the concavely shaped exit surface.

Abstract: A voice coil and actuator yoke assembly is fabricated by deforming the coil to exactly fit the inner perimeter and thickness of the yoke. The comb is placed in a tool that registers the comb with the yoke against the same flat surfaces that will squash the coil. The tooling is closed and placed in an appropriate loading device and the coils are squashed to the precise thickness of the yoke. This eliminates the in-plane tolerances of the current process for bonding a coil into the yoke. The coil perimeter expands as the coil is squashed to form an intimate press fit with the yoke. A low viscosity, high Tg adhesive is then applied to the coil. The low viscosity of the adhesive allows capillary action to fill the voids between the wires and bond the coil to the yoke.

Abstract: A method of manufacturing a digital magneto-optical signal write/read head including a thin-film in-plane magnetic coil disposed on an outwardly directed surface of a coil substrate. Coil lead in and coil lead out sections of the coil are extended to an interconnection part of the side surface of the coil substrate and first and second spaced interconnecting conductors are deposited on the side surface of the coil substrate in electrical connection with the lead in and lead out sections of the magnetic coil for contacting the external lead in and lead out lines. Alternatively first and second contacting conductors may additionally be deposited on a top surface of the coil substrate in electrical connection with the first and second interconnecting conductors on the side surface of the coil substrate for contacting the said external lead in and lead out lines.

Abstract: A method for manufacturing a magnetic recording head includes the steps of forming a first lifting layer and a second lifting layer on a bottom core layer, forming an inorganic insulating layer in a gap between the first lifting layer and the second lifting layer, forming a groove in the inorganic insulating layer to form a coil layer, and forming the coil layer in the groove and over the groove by plating.

Abstract: The invention relates to a method of manufacturing a band coil by means of a material-removing process performed on the coils so as to obtain a band coil which has a profile in the direction of the coil axis. Such a process may be a discharge process, an etching process or a mechanical grinding process. The obtained band coils may have such a shape that certain coil sides are effective whereas other coil sides are interfering as little as possible. Such band coils can be very successful in planar motors.

Abstract: The invention relates to a procedure for preparing the windings for an electric motor. The magnetic core (20) of the stator and/or rotor of the motor is provided with slots (24,25) in which winding coils (2; 5,7;15,17) can be fitted. According to the invention, the winding coils (2) are wound from winding wire and shaped substantially into their final form, the cross-section of the coil sides (15,17) corresponding to the space reserved in the slot (24,25) for the coil. The winding coils (15,17) are fitted in place in the slots (24,25) provided in the magnetic core.