42results about "Card carriers" patented technology

Data-storage devices and methods are disclosed. An exemplary data-storage device includes a medium having at least two dimensions and having a surface. Multiple data-containing loci are arranged on the surface. Each locus has a respective amount of magnetically responsive particles. The respective amounts are different in at least some of the loci. The respective amount at a particular locus corresponds, at least in part, to a respective unit of data contained by the locus. The loci can be substantially two-dimensional or three-dimensional, the latter being configured as respective holes, containing respective amounts of magnetically responsive particles, extending depth-wise into the medium. The loci typically range in size from the micrometer range to the nanometer range. The medium can be any of various configurations such as cards, sheets, films, etc.

A data storage device for use as a portable card, magnetically encodeable card, magnetic credit card or the like is shown. The data storage device includes a substrate having at least one surface. A high density, magnetically coercive material layer is disposed on or is deposited on the substrate for storing magnetic signals. The magnetically coercive material may have an axis of magnetization that is oriented in a predetermined direction relative to the at least one surface of the substrate. A layer of non-magnetically material is disposed on the substrate for defining an exchange break layer. A relatively hard, abradeable protective coating is formed on said magnetic material layer and is selected to have a thickness between a maximum thickness which would materially attenuate magnetic signals passing between the magnetic material layer and a transducer and a minimum thickness enabling said protective coating to be abraded by usage in an ambient natural atmosphere operating environment for removing therefrom a known quantity of the protective coating. The protective coating may comprise one, two or more layers of materials.

A non-conductive carrier having a conductive component comprising a plurality of sections to disrupt the conductive component's conductive path. Each section is isolated from other sections such that a charge accumulated in one section cannot combine with the charge accumulated in another section, thereby minimizing any potential electrostatic discharge from the carrier.

A flat sheet material for manufacturing sheets for receiving information has at least one coating applied onto a substrate. Particles that are electrically activatable particles, magnetizable particles, or electrically activatable and magnetizable particles are embedded in the coating. By activation or magnetization of the particles when arranged in an electrical or a magnetic field, information is writable, retrievable and changeable on the sheet material. The at least one coating has fine cavities that can be in the form of microcapsules containing dyes or adhesives or fragrances.

The present invention provides a secured holographic magnetic tape comprising a magnetic layer for encoding data, an embossable layer for embossing a hologram, and a metal layer. The metal layer comprises a plurality of sections forming a pattern based on a predetermined magnetic signature of the tape. The present invention also provides a method of making the secured holographic magnetic tape and incorporating the same to a card.

The present invention discloses a magnetic tape cassette and a magnetic tape cassette recording / reproducing apparatus, which can prevent the magnetic tape from being electrified to avoid damage to the magnetic head, while reducing the resistance of the magnetic tape and maintaining optimized electromagnetic conversion characteristics. The tape reel (7) is made of conductive material, and one end of the tape (6) connected to the reel hub (7B) has a surface resistivity [Ω / sq] of the order of 107 or less. Since a magnetic layer (23), a nonmagnetic layer (22), a plastic film (21), and a backcoat layer (24) formed from the magnetic surface (6M) side are included in the magnetic tape (6) having a multilayer structure, even When the surface resistivity of the magnetic layer (23) exceeds 107 Ω / sq, the magnetic layer (23) is removed and the exposed non-magnetic conductive surface (22) is connected to the reel hub (7A), thus maintaining optimal electromagnetic conversion characteristics while reducing the resistance of the tape.

A method of fabricating a magnetic recording medium sequentially forms a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body. The stacked body is enclosed in a transfer container unit without exposing the stacked body to atmosphere after forming the protection layer on the stacked body by a deposition apparatus, and the transfer container unit is transported to a vapor-phase lubrication deposition apparatus. The stacked body is removed from the transfer container unit without exposing the stacked body to the atmosphere, in order to form the lubricant layer on the stacked body within the vapor-phase lubrication deposition apparatus.

A data storage device serving as a portable card, magnetically encodeable card, or a magnetic credit card is shown. The data storage device includes a substrate having at least one surface. A high density, magnetically coercive material layer is disposed on or is deposited on the substrate for storing magnetic signals. The magnetically coercive material may have an axis of magnetization that is oriented in a predetermined direction relative to the at least one surface of the substrate. A layer of non-magnetically material is disposed on the substrate for defining an exchange break layer. A relatively hard, abradeable protective coating is formed on the magnetic material layer and has a thickness between a maximum thickness that materially attenuates magnetic signals passing between the magnetic material layer and a transducer and a minimum thickness enabling the protective coating to be abraded by usage in an ambient natural atmosphere operating environment.

Disclosed is a method of authenticating a magnetic recording medium, capable of immediately detecting unauthorized use of a magnetic recording medium by a stranger other than an owner of the magnetic recording medium, and maintaining a degree of compatibility with conventional magnetic recording mediums. In this method, a physical pattern is formed in a recording region adapted to magnetically record basic information thereon, so as to change a magnetic property of the recording region to an extent allowing the basic information to be read from and / or written in the recording region. On the occasion of authentication of the magnetic recording medium, a magnetic characteristic induced by the physical pattern is read from the recording region to generate authentication information in accordance with the magnetic characteristic. Then, the magnetic recording medium is authenticated in accordance with the authentication information. When the basic information on the magnetic recording medium formed with the physical pattern is duly rewritten, new authentication information is re-generated to authenticate the rewritten magnetic recording medium in accordance with the new authentication information.Magnetic card authentication means capable of immediately detecting an unauthorized use or an authorized rewrite of recorded content by a person other than the authorized person and maintaining compatibility with a conventional magnetic card to a certain extent. For this, physical pattern formation is performed by forming a physical pattern in a recording area for changing magnetic characteristic of the recording area within a range enabling read and / or write of basic information magnetically recorded in the recording area. Upon authentication, magnetic characteristic based on the physical pattern is read out from the magnetic recording area. According to this, authentication information is generated and according to the authentication information.

The magnetic recording medium of the present invention has a pattern formed using a pattern-forming agent in a laminate of multiple layers including a base material and a magnetic recoding layer, wherein the pattern is recognized on the surface of the laminate opposite to the base material, and the pattern-forming agent is distributed through the thickness of the laminate, wherein a region between the center of the magnetic recording layer and a magnetic recording-reading side of the laminate has an area having a density gradient of the pattern-forming agent which gradually declines in the direction from the center of the magnetic recording layer to the magnetic recording-reading side.

When an information signal recorded in a magnetic card is updated by an information recording and updating apparatus, a spectrum spread signal corresponding to the updated information signal is generated and it is then recorded superimposed on to the information recorded previously in the magnetic card without erasing the old information. Since the information is spectrum spread, alteration is difficult. Moreover, the magnetic card may be discriminated whether it may be used or not by considering the old information recorded in the magnetic card when it is used.

To provide a card-like magnetic recording medium and a transferable laminate which can make a hologram distinctly recognizable and can prevent the occurrence of an ESD fault.In the card-like magnetic recording medium, on the magnetic recording layer 12 formed on the base material for a card 20, the transparent non-conductive deposited layer 14 and the transparent optical diffraction layer 15 are laminated in this order; between the magnetic recording layer 12 and the transparent non-conductive deposited layer 14, a reflective ink layer 13 which includes, at least, binder resin and metal flake, is formed; and a mass ratio of this binder resin / metal flake is set from 3 to 10.

The invention relates to a thermal sensitive magnetic recording paper, which is used to reduce the magnetic slurry foam and improve the waterproof property of coat. Wherein, one surface of paper is coated with a magnetic recording layer, and another surface is coated with a thermal sensitive layer and a protective layer, while the components of magnetic recording layer (mass percentage) comprises: magnetic powder in 50-90 deals; carbon black in 5-10 deals; disperser in 1-5 deals; adhesive in 10-40 deals; and water in 50-200 deals; the adhesive is the mixture of soluble adhesive and emulsion adhesive. The invention has better waterproof ability, and the wider application for the tickets of railway, road, underground, etc.