摘要:
An electrode master for ferroelectric recording records information on a ferroelectric recording medium in which the direction of polarization of a ferroelectric material has been unified in one direction by applying a voltage thereto, based on the direction of polarization of the ferroelectric material, by applying voltage pulses to the ferroelectric recording medium. The electrode master includes an electroconductive base material; a plurality of electrode convexes provided on a surface of the electroconductive base material so as to correspond to information to be recorded on the ferroelectric recording medium; and an electrode terminal conducted to each of the electrode convexes and provided on the electroconductive base material.
摘要:
A communication apparatus includes an input unit that inputs names of repeater stations to which the local communication apparatus and a communication counterpart belong respectively, a memory storing identification information of each repeater station, and information needed to set a communication path from the repeater station to another repeater station as communication path setting information associated with the name of the repeater station, an information retrieving section that retrieves identification information of the repeater station, and information needed to set a communication path to another repeater station from the associated information stored in the memory based on the input name of the repeater station, and a communication frame generating section that generates a communication frame including the identification information of the repeater station, and the information needed to set the communication path from the repeater station to which the local communication apparatus belongs to the repeater station of the communication counterpart from a result of the information retrieval.
摘要:
To provide a method for producing a magnetic transfer master carrier, including: plating a patterned silicon substrate with nickel so as to form a base material on the silicon substrate; separating the base material from the silicon substrate; and etching a surface of the base material so as to obtain an oriented base material, wherein the magnetic transfer master carrier includes the oriented base material, a thin underlying layer formed on the oriented base material, and a magnetic layer formed on the thin underlying layer.
摘要:
Provided is a method of magnetic transfer. The method includes initially DC-magnetizing a transfer-recipient disc in a circumferential direction, by applying a magnetic field to the transfer-recipient disc in the circumferential direction thereof bringing initially DC-magnetized transfer-recipient disc and a master disc into close contact with each other, on the top side of the master disc a magnetic layer including a great number of protrusions that configure a magnetic pattern being formed; and executing magnetic transfer in such a way that a magnetic-field generation device is provided, and that, when a magnetic field is applied in a circumferential direction to the transfer-recipient disc and the master disc, transfer of the magnetic pattern of the master disc onto the transfer-recipient disc occurs.
摘要:
According to the present invention, since the applied magnetic field strength is controlled so as to fall between maximum magnetic field strength×0.7 and the maximum magnetic field strength over almost an entire surface of the magnetic recording medium, there is not much variation in the strength of the applied magnetic field relative to media coercivity during DC demagnetization, which makes it possible to obtain uniform magnetization over almost the entire surface.
摘要:
The present invention provides a method for magnetic transfer and an apparatus for magnetic transfer, by which it is possible to transfer a transfer pattern with high quality from a master carrier for magnetic transfer to a slave medium by magnetic transfer regardless of position of the magnetic pattern. The method and the apparatus for magnetic transfer according to the present invention are used to apply magnetic field for transfer by bringing the master carrier for magnetic transfer into contact with the slave medium, the master carrier having a magnetic layer formed on a portion corresponding to an information signal on surface of a substrate, and the slave medium being a magnetic recording medium for receiving magnetic transfer after performing initial DC magnetization by a magnetic field by more than 1.5 times higher than the coercive force Hcm of the slave medium under the condition that the slave medium is combined with the master carrier for magnetic transfer closely together, and a recording information on the master carrier for magnetic transfer is transferred by applying a magnetic field in opposite direction to the direction of the initial DC magnetization under the condition that the slave medium is combined with the master carrier for magnetic transfer closely together.
摘要:
The present invention provides a master carrier for magnetic transfer, comprising a plurality of transfer information recording sectors having recording information magnetized thereon, a non-magnetic-material sector defining each of the transfer information recording sectors is present between each of adjacent transfer information recording sectors, and surfaces of the transfer information recording sectors and surfaces of the non-magnetic material sectors are positioned on and form the same plane.
摘要:
A telescopic boom 9 comprises a proximal boom 9a, an intermediate boom 9b, and a distal boom 9c assembled together in a telescopic fashion. A telescopic cylinder 21 is disposed such that a distal end portion of a cylinder rod 21b is firmly attached to a proximal end portion of the proximal boom 9a, whereas a cylinder tube 21a is firmly attached into the intermediate boom 9b. A retraction sheave 25 is mounted to the cylinder tube 21a nearer the proximal end of the telescopic boom 9. An extension sheave 27 is mounted to the cylinder tube 21a nearer the distal end of the telescopic boom 9. A guide pipe 35 is disposed such that one end thereof is firmly attached to the proximal end portion of the proximal boom 9a and the other end is disposed between the retraction sheave 25 and the extension sheave 27. A protective tube 47 is disposed such that, with its one end firmly attached to the distal end portion of the guide pipe 35, it extends toward the distal end of the telescopic boom 9 and then is reversed in the vicinity of an end portion of the cylinder tube 21a so as to extend to a position opposing the guide pipe 35 from the cylinder tube 21a, with the other end connected to the proximal end portion of the distal boom 9c. A hose and the like 45 penetrate through the protective tube 47.
摘要:
A surface acoustic wave charge transfer device of monolithic type has a channel stopper for preventing the charge carriers from deviating from the transfer channel of the device. The charge transfer device has an acoustic wave generator for generating an acoustic wave propagating in a piezo-electric layer, a transfer channel for transferring charge carriers within a depletion layer in the vicinity of the surface of a semiconductor being bunched in a potential wells of a potential wave accompanying the acoustic wave, and a detector for detecting the transferred charge carriers. In a preferred embodiment of the invention, the charge carriers are transferred in a perfect bunching condition. In another preferred embodiment, the acoustic wave propagates at such a speed that the time for propagating one wavelength distance is shorter than the statistical time for the charge carriers to drop in the traps on the surface of the semiconductor. In a further preferred embodiment, the charge transfer device has a carrier storing portion in or close to the transfer channel for storing charge carriers for memorization.
摘要:
In forming a vertical magnetization type recording medium, a first soft magnetic film layer is formed on each side of a film-shaped support by vacuum deposition or sputtering at a temperature of 30.degree. C. or lower, a second soft magnetic film layer is formed on each of the first soft magnetic film layers, and a vertical magnetization film layer essentially containing Co-Cr is formed on each of the second soft magnetic film layers. The thickness of the first soft magnetic film layer on one side of the support may be made different from that of the first soft magnetic film layer on the other side so that curling of the recording medium is substantially eliminated.