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4816374 |
Method of making a plastic material sensitive to laser radiation and enabling it to be marked by a laser, and articles obtained thereby
An opacifier substance is added to a plastic material which is naturally transparent to laser radiation. The opacifier substance is added in powder form as a concentration of 2% to 6% by weight of...
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4816362 |
Optical recording cards with non-recording reflective layer
An optical recording material comprising (I) a substrate, (II) a recording layer provided on said substrate, the recording layer consisting of light transmissive portions and light screening...
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4816385 |
Method of optically recording and erasing information
According to the method a rotating recording element 23 (FIG. 3) having a crystalline recording layer 28 of the composition Q x Sb y Te z , wherein Q=In, Ga; X=34-44 at. %; y=51-62 at. %; Z=2-9...
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4814256 |
Optical recording material
An optical recording material possesses a light-absorbing layer on a base, the said layer containing one or more colorants of the formula (I) ##STR1## where M is two hydrogen atoms or Fe, Cu, Co,...
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4812218 |
Method of making a digital recording medium
A digital recording medium formed of a thermoplastic substrate having a regular array of microscopic optically-alterable mirrors each supported by a mesa projecting from one surface of the...
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4811326 |
Method of recording digital information on an array of equally spaced micromirrors
A method of recording digital information on a thermoplastic substrate having an array of equally-spaced microscopic optically-alterable mirrors each supported by a mesa projecting from one surface...
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4808514 |
Method for the optical recording of information and an optical recording element used in the method
A method is provided for the optical recording of information in which an amorphous recording layer 4 having a composition according to formula (1) provided on a synthetic resin substrate (2) (FIG....
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4806952 |
Information recording apparatus for recording/reproducing information by irradiating an information recording medium with an energy beam
In an information recording apparatus according to this invention, since it is not necessary to dispose any differential circuit, which was required heretofore, it is possible to fabricate it with...
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4798781 |
Fabrication process of optical recording medium
Disclosed herein is a fabrication process of an optical recording medium permitting writing and reading-out of signals without any reflective layer. The medium is fabricated by coating, on a...
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4795676 |
Electrostatic recording material
In an electrostatic recording material being composed of a multi-layered sheet support having an electroconductive layer and a dielectric layer formed successively thereon, the number of...
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4792487 |
Ink jet recording medium comprising (a) water expansible colloidal clay (b) silica and (c) water insoluble synthetic binder
An ink jet printing substrate particularly useful as a coating for paper for multi-color, water base ink jet printing consisting essentially of a high swelling montmorillonite clay, and optionally...
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4792474 |
Optical memory element
An optical memory element comprises a substrate, a recording medium layer and an aluminum silicon nitride film laminated in this order.
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4792485 |
Electrostatic recording sheet
An electrostatic recording sheet comprising a support provided thereon a conductive layer and a dielectric layer, in this order, with the dielectrics layer containing polypropylene particles with a...
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4791044 |
Disk type information recording medium
A disk-shaped information recording medium is provided in such a manner that at least one information bearing layer formed on a side of a pair of disk-shaped substrates, which substrates are...
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4788097 |
Information recording medium
An information recording medium including a substrate, an optional intermediate layer arranged on the substrate, and a recording layer arranged on the intermediate layer on the substrate, the...
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4788128 |
Transfer printing medium with thermal transfer dye and infra-red radiation phthalocyanine absorber
A transfer printing medium comprising a substrate supporting a thermal transfer dye and a radiation absorber positioned to provide thermal energy to the transfer dye when subjected to radiation...
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4788129 |
High contrast optical memory tape
A medium in tape form for laser recorded optical information featuring a gelatin layer having a thin black crust at the top of the layer. The crust is formed by developed black filamentary silver...
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4788562 |
Optical recording medium
In an optical recording medium of the reflection type, the light-absorbing layer contains polypyrrole as the light-absorbing substance.
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4788561 |
Optical recording carrier
The invention relates to an optical recording carrier wherein a recording laser beam or the like is focused onto a recording material so that information signals are recorded thereon. It is one...
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4786585 |
Image forming and data storage
A method of forming an image and a radiation-sensitive medium suitable for carrying an image is disclosed. The medium comprises a substrate having a surface structure comprising grooves with a...
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4786538 |
Optical recording medium formed of chalcogenide oxide and method for producing the same
Metal tellurium is vaporized under the atmosphere of oxygen gas and/or inert gas formed into a plasma by a high frequency power to thereby form a tellurium oxide (TeOx, 0≤X≤2) layer. The...
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4784896 |
Heat transfer recording sheet
A heat transfer recording sheet comprising (A) a substrate film, and (B) formed on at least one surface of the substrate film, a film of an acrylic resin having recurring units represented by...
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4783393 |
Dye mixtures and optical recording elements containing same
A dye mixture comprising at least two different unsymmetrical bis[1,2-diphenyl-1,2-ethanedithiolato(2 - )-S,S'] -platinum compounds is disclosed. The mixture is useful in optical recording layers.
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4783376 |
Light-transmissive recording medium and image formation method using the same
A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10 14 Ω/cm 2 , and has property of trapping a recording agent which is...
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4783386 |
Use of anthracyanine and phenanthracyanine chromophores in optical information media
Provided is an optical information recording medium and a method of recording information thereon. The information layer of the recording medium comprises an anthracyanine or phenanthracyanine...
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4782477 |
Optical recording medium with fluorine resin adhesive
A magneto-optical recording disk has a transparent resinous substrate with a pre-groove, and a metallic recording layer formed above the substrate. A transparent adhesive layer is provided between...
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4780867 |
Method for erasably recording data by viscoelastic shear deformation
An erasable optical data storage medium has a polymer dual recording layer including an expansion layer bonded to a retention layer, each of the layers dyed to selectively absorb light in...
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4778711 |
Paper for receiving toner images in electrophotography
An electrophotographic image transfer paper for a copier including a fixing operation, comprises a sheet of raw paper, and a receiving layer on the paper for reducing blistering of the sheet during...
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4777492 |
Thermal recording method
A recording method utilizing a thin blended layer of two or more polymers which assumes a mutually dissolved transparent state below a predetermined temperature but a phase-separated opaque state...
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4775568 |
Optical information storage medium
An optical information storage medium comprising a transparent substrate and an information carrying layer positioned on one side of the substrate, wherein the information carrying layer contains...
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4772897 |
Optical recording medium
An optical recording medium for optically storing and retrieving information comprises a substrate, two recording layers supported on the substrate and a barrier layer provided between the two...
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4773059 |
Information recording and reproducing apparatus having recording medium made of alloy which has at least two different crystalline structures in its solid state
An information recording and reproducing apparatus is disclosed, which makes use a recording medium made of a metal or alloy having phases different in their crystalline structures at at least two...
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4767696 |
Laser information recording medium having an improved recording layer
A laser information recording medium comprising a substrate, a reflective layer and a recording layer. The recording layer is made of cumulative sub-layers of J-aggregates of an organic dye having...
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4766021 |
Optical recording medium
Optical recording media for recording and retrieval of information by means of high energy radiation, which media consist essentially of a polymeric base having uniaxial orientation and, applied on...
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4764444 |
Transfer element with mosaic pattern of heat transferable dyes
A color transfer imaging element comprising a support having thereon an imaging layer comprising a thermographic, photothermographic, or electrographic material capable of forming an image which...
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4762770 |
High contrast optical memory disk
An optical memory disk for laser recorded optical information featuring a gelatin layer having a thin black crust at the top of the layer. The crust is formed by developed black irregular oblong...
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4760012 |
Signal recording disk
A signal recording disk having an adhesive resin layer formed on a recording layer. The adhesive resin layer contains at least an epoxy group-containing compound, thereby preventing the recording...
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4757492 |
Method for recording and reproducing information on or from an optical recording medium
A method for recording and reproducing information on or from an optical recording medium, which comprises: recording information by illuminating light to the optical recording medium which is...
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4755396 |
Image receiving element for thermal printers
Image receiving medium comprising a substrate bearing on at least one major surface thereof a coating of heat-sensitive material comprising (a) material capable of existing in a supercooled state...
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4753830 |
Film forming method, recording medium formed thereby and recording method therewith
A film forming method, a recording medium formed thereby, and a recording method therewith are provided. The recording medium comprises a recording layer constituted of a monomolecular film or...
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4753861 |
Organic optical information storage medium employing crystalline transitions
Erasable optical memories for storing information are prepared from organic materials having two stable crystalline forms. Each crystalline form has at least one different optical characteristic...
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4752554 |
Optical information recording medium
The present invention relates to an optical information recording medium comprising a substrate, recording layer and protective layer, characterized in that said protective layer comprises, as the...
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4752820 |
Optical recording medium having a liquid crystal layer
An optical recording medium comprising a pair of substrates each having an electrode, the space between the substrate is filled with a high-dielectric liquid crystal to form a rewritable recording...
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4752522 |
Electrostatic recording material
An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating...
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4751124 |
Information recording medium
An information recording medium such as a magneto-optical recording medium is disclosed. The medium comprises two pieces of recording elements. Each element comprises a support and a recording...
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4748150 |
Subbing layer for dye image-receiving layer used in thermal dye transfer
A dye-receiving element for thermal dye transfer comprises a support, such as polyethylene-coated paper or poly(ethylene terephthalate), having thereon a subbing layer of a vinylidene chloride...
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4746646 |
Printing paper for thermal transfer printing
A printing paper for thermal transfer printing comprising a substrate, and a dye acceptor layer formed on one surface of the substrate to accept a sublimable dye transferred from a dye carrier...
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4745030 |
Electrostatic recording device
An electrostatic recording device of transfer system provided with a recording medium having a dielectric layer and an electroconductive substrate is disclosed in which the recording medium has a...
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4740947 |
Dual surface optical memory disc
A first optical memory disc and a second optical memory disc are fixed to each other by an adhesive layer so as to form a dual-surface optical memory disc. In a manufacturing step, an adhesive,...
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4736966 |
Data card with peelable protective layers
An optical data storage medium, such as a data card with a strip of optical data storage material, having peelable transparent protective layers adhered above the storage material. When a...
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