摘要:
A needle threader is provided with a needle holder for holding a needle, and a pusher for inserting a thread into the eye of the needle. The pusher is horizontally movable in forward and backward directions relative to the needle holder. By the forward move, the pusher comes into contact with the needle accommodated in the needle holder. The pusher is movable longitudinally of the needle as held in sliding contact with the needle.
摘要:
A storage system has a storage medium, a head, and a control unit for carrying out refresh processing. A refresh operation extracts data that needs to be refreshed by measuring the read-out output level of target data. Then, data requiring refresh is re-recorded to the storage medium by the head. Because an actual data level is observed, it is possible to accurately detect refresh target data, and because there is no need for a reference area, it is possible to prevent a reduction in storage capacity.
摘要:
To provide a method of producing a multilayer printed wiring board that can be intended to have low-profile, light-weight and high-density wiring of a printed wiring board, and a multilayer printed wiring board produced by the method of producing a multilayer printed wiring board, the double-sided substrate is produced by the steps of forming an insulating resin layer on a metal foil; of forming a via hole in the insulating resin layer; of forming a first circuit pattern on the insulating resin layer and forming a conductive layer in the via hole, by plating; and of etching the metal foil to form it into a second circuit pattern. The produced double-sided substrate is used as a core substrate for producing multilayer printed wiring board by a laminate-en-bloc or a build-up method.
摘要:
A magnetic recording medium with a high recording density has a first ferromagnetic layer, a non-magnetic layer, and a second ferromagnetic layer successively deposited as the recording layer on a non-magnetic substrate. The recording layer is heated in concentric circular shapes to divide it into regions in which the magnetic interactions between the ferromagnetic layers exhibit ferromagnetism and regions that exhibit anti-ferromagnetism. The ferromagnetic regions are used for recording tracks, and the anti-ferromagnetic regions function as guard bands. In this manner track density is increased without roughening the surface of the recording medium.
摘要:
A disk array controller, comprising a channel interface unit for connecting a host computer through a first type channel; a channel interface unit for connecting a host computer through a second type channel; a plurality of disk interface units provided with an interface with a magnetic disk unit respectively; a cache memory unit; and a shared memory unit; wherein the number of access paths connected to said cache memory unit is less than the number of access paths connected to said shared memory unit.
摘要:
An influence by a vibration which is transmitted in the air is reduced, thereby preventing an erroneous detection of coordinates or a deterioration in a detecting precision. An elastic resin sheet is arranged on a coordinates input surface side of a vibration transmission plate so as to have a gap between the resin sheet and the vibration transmission plate and is fixed by an adhesive layer. When coordinates are inputted by a vibrator pen, namely, when a vibration is inputted, the resin sheet is warped by a writing pressure of the vibrator pen and the resin sheet comes into contact with the vibration transmission plate. Therefore, the vibration applied by the vibrator pen is efficiently transmitted to the vibration transmission plate. On the other hand, a vibration transmitted from the air is reflected by the boundary on both surface sides of the resin sheet and by the surface of the vibration transmission plate by a difference between acoustic impedances, so that the vibration entering the vibration transmission plate is remarkably reduced.
摘要:
A plurality of test pieces are taken from a long-sized substrate made of stainless steel, where the test pieces are arranged in parallel to the width direction TD of the substrate in a region near the forward end of the substrate. A variation among the curvatures of the test pieces is then measured. A substrate where the variation in the curvature is 0.002 [1/mm] or smaller is selected as a substrate used in manufacture of magnetic head suspensions. While the selected substrate is transported in its length direction, an insulating layer and a conductor layer are stacked on the substrate to form a plurality of magnetic head suspensions.
摘要:
A coordinates input apparatus which detects vibration, inputted by a vibration-input pen, by a plurality of vibration sensors provided on a vibration-transmitting tablet, and derives coordinates of a vibration-input point based on vibration transmitting time on the vibration-transmitting tablet. The vibration-transmitting tablet comprises a glass substrate and two sheets of resinous film laminated on the glass substrate. The two sheets of resinous film are laminated on both surfaces of the glass substrate in an orientation such that the stretched directions of the resinous film differ for 90 degrees. By this, a vibration-transmitting tablet where sheets of protection film are laminated, and a coordinates input apparatus which minimizes the changes in vibration propagation velocity depending on the propagation directions, are realized.
摘要:
A method is disclosed for fabricating a spin-valve magnetic head including a layered body of a first ferromagnetic layer having a first easy axis of magnetization extending in a first direction, a non-magnetic layer formed on the first ferromagnetic layer, a second ferromagnetic layer provided on the non-magnetic layer, and an anti-ferromagnetic layer provided on the second ferromagnetic layer in exchange coupling therewith. The method includes a first thermal annealing process with the steps of annealing the layered body in a first annealing state and applying a magnetic field to the layered body in a second direction different from the first direction, while maintaining the layered body in the first annealing state. The method further includes a second thermal annealing process with the steps of annealing the layered body, after the first thermal annealing process, in a second annealing state and applying a magnetic field in a third direction different from the second direction while maintaining the layered body in the second annealing state.
摘要:
A controller of an electric power steering system corrects a motor current command value by using a temperature of a motor, and compensates a variation in a motor current characteristic in accordance with a variation in the temperature. The controller includes a torque sensor for detecting a steering torque of a steering wheel; a motor for supplying a steering assist torque to a steering shaft integrally provided with the steering wheel; and a control unit for driving the motor in accordance with a magnitude of the steering torque. The control unit corrects a motor current command value in accordance with a temperature of the motor, and controls a motor current in accordance with the corrected motor current command value.