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Match Document Document Title
7623436 High capacity digital data storage by transmission of radiant energy through arrays of small diameter holes  
A storage media for storage of data thereon is provided. The storage media including: a first layer, the first layer being substantially transparent to a predetermined radiant energy used for...
7619962 Optical disc and method of producing the same  
An optical disc with a first recording layer has first data pits that include 14T data pits formed thereon in compliance with DVD-ROM specifications. A first reflective film is formed on the first...
7615333 Write-once optical disk and optical recording method  
A write-once optical disk comprises a substrate, a recording layer which is stacked on the substrate and comprised of a first reaction layer comprised of a material containing hydrogen and a second...
7602687 Method and apparatus for recording information on optical disc  
An optical disc of a recordable type or a rewritable type has a plurality of recording layers including first and second recording layers. A laser beam is applied to the second recording layer...
7599278 Recording medium comprising ferroelectric layer, nonvolatile memory device comprising recording medium, and methods of writing and reading data for the memory device  
A recording medium including a ferroelectric layer, a nonvolatile memory device including the recording medium and methods of wiring and reading data in the memory device. The recording medium...
7596077 Optical disk  
The present invention relates to an optical disc for use as a recording medium in an optical disc drive, which has a transparent protection film ( 120 ) formed on a recording layer on one plane of...
7586830 Magnetic recording medium and manufacturing method therefor  
There is provided a novel magnetic recording medium which less damages the recording layer and of which recording tracks are fully magnetically spaced apart and manufacturing method therefor. The...
7583580 Optical recording medium as well as optical recording and reproduction method  
An optical recording medium illuminated by light from a light source as near-field light using a focusing lens whose numerical aperture exceeds 1 to perform recording and/or reproduction is...
7570566 Optical disc, optical disc manufacturing method, and optical disc apparatus  
According to one embodiment, an optical disc is the following the distance between a light incidence plane and the first recording layer is a minimum of 550 μm. The distance between the first and...
7567499 Optical disc and method of producing the same  
An optical disc includes a first substrate having a first surface having a first recording layer formed thereon, a first reflective film formed on the first recording layer, a second substrate...
7567493 Multilayer recording medium and method of manufacturing the same  
A multilayer recording medium that prevents deterioration of a signal characteristic due to a mirror effect that may occur between recording layers and a method of manufacturing the same, the...
7554901 Double sided optical disc and method for producing the same  
A double sided optical disc includes a first record carrier having a light transmitting base board, a first reflecting layer formed on the base board and a first protective layer formed on the...
7553604 Cyanine compound, optical recording material, and optical recording medium  
A cyanine compound represented by formula (I): wherein ring A and ring B each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted naphthalene ring; R 1 , R 2...
7542401 Birefringence characteristic measuring method, optical recording medium and optical information recording/reproducing apparatus  
Four types of optical systems, a polarization optical system including an objective lens having a high numerical aperture, a polarization optical system including an objective lens having a low...
7537881 Optical information recording medium  
An optical information recording medium containing a substrate having provided thereon a recording layer capable of recording information by laser beam irradiation, wherein the recording layer...
7527914 Reading inhibit agents  
Disclosed is an optical disk, card or media which comprises: a) a plurality of data structures that are readable by the interrogating beam of light; and b)a composition on or in the optical disk,...
7471612 Recording medium having substrate with thickness dependent on numerical aperture of object lens, method of forming the optical medium and optical recording/reproducing apparatus  
A high density optical disc that can be driven changeably with the existent optical disc by the same driving apparatus. On the recording surface of the optical disc, a light transmissive layer with...
7459263 Optical recording media with triplet-sensitized isomerization  
The invention relates to an optical recording material comprising: a polymeric matrix; a dewarbenzene derivative reactant capable of undergoing isomerization to a benzene product upon triplet...
7457207 Recording medium having a substrate containing microscopic pattern of parallel groove and land sections and recording/reproducing equipment therefor  
An information recording medium 1 at least comprises a substrate 13 having a microscopic pattern 20, which is constituted by a shape of continuous substance of approximately parallel grooves...
7439008 Optical recording medium, and, method and apparatus for optical recording and reproducing using optical recording medium  
The object of the present invention is to provide an optical recording medium in which a recording material of the optical recording medium has a high solubility in an organic solvent, so that the...
7433293 Optical disc recording medium and method of manufacturing the same  
An optical disc recording medium of the present invention comprises a first substrate ( 11 ) having a physically pre-formatted surface; a reflective film ( 12 ) formed on the pre-formatted surface...
7423957 Optical information recording medium and method of manufacturing thereof, manufacturing apparatus, recording/reproducing method, and recording/reproducing apparatus  
The present invention provides an optical information recording medium of excellent signal quality in high density recording onto a semitransparent information layer, its manufacturing method and a...
7420910 Optical recording/reproducing method for multiple recording media with different recording density  
An optical recording and reproducing method is able to record and reproduce information by using an optical system using recording and reproducing light with a wavelength selected in a range of...
7414954 Optical information recording medium  
A phase-change optical information recording medium in which information can be recorded, reproduced and rewritten and which includes a first transparent substrate having a wobbling guide groove...
7385907 Rewritable optical record carrier  
A rewritable optical record carrier comprising a first substrate carrying a first recording stack of layers, which recording stack comprises, a first dielectric layer, a recording layer comprising...
7369483 Pre-formatted linear optical data storage medium  
A pre-formatted optical data storage tape ( 10 ) including an elongated linear polymer layer having at least one pattern of optically readable embossments ( 114 ) on at least one surface of the...
7366085 High-density optical recording medium and method of recording data on the same  
A high-density optical recording medium and method of recording data on the optical recording medium. The optical recording medium includes a plurality of data recording/reproducing surfaces having...
7354694 Styryl dye  
The present invention provides styryl dyes which have absorption maxima at a wavelength of 400 nm or less and are sensitive to a laser beam with a wavelength of 450 nm or less, light absorbents and...
7336596 Optical storage medium  
An optical disk consists of a first laminated layer structure and a second laminated layer structure. The first structure has a first transparent substrate having a first surface and a second...
7335459 Phase-change optical recording medium  
A phase-change optical recording medium includes a phase-change optical recording film that permits reversible phase change between a crystalline phase and an amorphous phase upon irradiation with...
7333418 Shape-limitless optical media  
The present invention provides a optical media with no shape limitation and, by deposing a position mark in a recording layer and reflection layer, an encryption setup and a special shape can be...
7313056 Magneto-optical recording medium and magneto-optical recording device  
The magneto-optical recording medium is comprised of a phase pit substrate/dielectric layer/recording layers/dielectric layer/reflection layer and a ROM and RAM can be simultaneously regenerated....
7309518 Radial tilt reduced media  
A storage media can comprise: a plastic substrate, an optical layer, a reflective layer disposed between the optical layer and the substrate, and an adhesive layer disposed between the optical...
7295508 Optical disk  
The present invention provides an optical disc which is constituted by a substrate, a recording layer, and a protection layer and is irradiated with a laser beam from the protection layer side. The...
7283447 Optical disc and optical disc apparatus  
The refractive index of a light transmission layer of an optical disk is set within the range of 1.45 to 1.75, the numerical aperture of a lens emitting laser light which is incident onto the light...
7272104 Optical recording medium having dual information surfaces  
An optical recording medium is provided which includes a first substrate having a first information surface, a semitransparent reflection film formed on the first information surface of the first...
7269123 Wavelength selective coatings for optical disc security  
An optical disc for data storage includes a layer of color-shifting material. Light passing through the color-shifting layer will have a color determined by the various constructive and destructive...
7260053 Optical recording medium, process for manufacturing the same, sputtering target for manufacturing the same, and optical recording process using the same  
An optical recording medium which comprises a substrate and a recording layer disposed on the substrate, in which the recording layer comprises Ga and Sb, a content of the Sb is 80 atm % to 95 atm...
7245580 Optical recording medium having protective and/or adhesive layers, and method of manufacture  
An optical recording medium including a substrate having guide groove thereon; a first protective layer located overlying the substrate; a recording layer located overlying the first protective...
7240352 Optical recording medium having a pattern  
An optical recording medium which comprises a print-receiving layer as the outermost layer on the side opposite to the light incidence side, wherein a pattern is formed on the print-receiving layer.
7239601 Optical recording medium, method of manufacturing optical recording medium, apparatus for manufacturing optical recording medium, program, and medium  
There are some cases that an accuracy is low for reading unique information identifying an individual from an optical disk which comprises a plurality of information layers. The optical disk...
7236450 Recording medium having resin substrate  
A recording medium including a resin substrate having a first thermal expansion coefficient, a center hole, a first surface, and a second surface opposite to the first surface, a recording layer...
7236440 Optical recording medium  
A high-speed, write-once type optical recording medium, which utilizes laser light that is either blue or an even shorter wavelength, as well as an optical recording method and an optical recording...
7226651 Article with composite hardcoat layer and method for forming composite hardcoat layer  
The present invention provides inexpensively an article with a hard coat excellent in anti-staining property, lubricity, scratch resistance and abrasion resistance. The present invention also...
7226637 Manufacturing method for multilayer fluorescent information carriers  
An information layer for an optical information storage medium is formed in a centrifuge. A photopolymerizable composition is applied to a solid base having a relief pattern, and a flexible,...
7221644 Disc-shaped recording medium, disc driving device and disc producing method  
With the disc-shaped recording medium, or the disc manufacturing method according to the present invention, for both the single-layer disc and the multi-layer disc, a recording layer L 0 , which is...
7218603 Optical data storage medium and use of such medium  
A multi-stack optical data storage medium ( 20 ) for rewritable recording using a focused radiation beam ( 30 ), entering through an entrance face ( 25 ) is described. The medium ( 20 ) has a...
7215634 Multi-layer record carrier and method of manufacturing thereof and recording thereon, with reduced transmission differences in the upper layer  
A multi-layer record carrier and method of manufacturing thereof and recording thereon, includes data written in units of blocks on tracks of at least two information layers. A first guard field is...
7213253 Optical recording medium and method of manufacturing the same  
In an optical disc, an information signal area on which an information signal can be recorded and/or reproduced is formed on a major surface of a disc substrate thereof; a light transmitting layer...
7203155 Optical disc including a plurality of data layers  
When recording or reading an optical disc having plural data recording layers, which data recording layer the light spot is focused on is detected to improve playback signal quality and signals...
Matches 1 - 50 out of 552 1 2 3 4 5 6 7 8 9 10 11 12 >