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Class 428/64.5 - Tellurium containing


Subclass of Class 428 - Stock material or miscellaneous articles
Definition: Subject matter wherein the recording medium or carrier contains
No. of patents: 336
Last issue date: 04/27/2010


1                  
NumberTitleIssue Date
7704582Optical recording medium
The optical recording medium according to one embodiment of the present invention includes a substrate, a reflective layer located on the upper side of the substrate and reflecting an incident laser beam, and an information recording layer located on the reflective ...
04/27/2010
7442424Information storage medium having super resolution structure and apparatus for recording to and/or reproducing from the same
A super-resolution information storage medium having recording marks or pits that are smaller than the resolution limit of a beam incident from an information recording and/or reproducing apparatus, and the information recording and/or reproducing apparatus. The inf...
10/28/2008
7438965Phase-change information recording medium, manufacturing method for the same, sputtering target, method for using the phase-change information recording medium and optical recording apparatus
It is an object of the present invention to provide a phase-change information recording medium, and the like, which is easy to perform initial crystallization, exhibits good recording sensitivity at a linear velocity as high as 10 double speeds or more with as much...
10/21/2008
7439007Phase change information recording medium having multiple layers and recording and playback method for the medium
A multilayer phase change information recording medium including plural information layers containing at least a first information layer and a last information layer, each of which includes a recording layer in which information is recorded utilizing a phase change ...
10/21/2008
7431973Optical information recording medium, and manufacturing method, recording method, and recording apparatus thereof
A recording medium has at least a recording layer on a transparent substrate. The recording layer has at least a first phase-changeable film and a second phase-changeable film in that order, starting on the side closest to the transparent substrate. The first phase-...
10/07/2008
7427431Write once optical recording medium
A write once optical recording medium includes a substrate on which an oxide film serving as an inorganic recording film is formed, the oxide film being made of a recording material of an oxide Ge1Ox (x is an atomic number ratio) of germanium (...
09/23/2008
7422838Phase-change optical recording medium
A phase-change optical recording medium is disclosed including a supporting substrate and the following contiguous layers formed on the supporting substrate in the order recited such as a first dielectric layer, a recording layer, a second dielectric layer, a metal/...
09/09/2008
7419712Optical information recording medium and method for manufacturing the same
An optical information recording medium includes the first to the n-th information layers (where n is an integer not less than 3) arranged in this order from a laser beam incident side. Each information layer includes a recording layer containing Te, O and M, where ...
09/02/2008
7407696Phase change materials for storage media
Phase-change compounds, and optical storage recording media, for recording and/or storage of data, comprising such compounds, according to the formula XSbySz; wherein X is selected from the group consisting of K, Rb, Tl, Na, Li, Cs and mixtures...
08/05/2008
7407697Information recording medium and method for manufacturing the same
An information recording medium is provided that has high recording sensitivity for recording information and superior repeated rewriting performance. The information recording medium has at least a recording layer that is changeable between a crystalline phase and ...
08/05/2008
7399511Optical recording medium
An optical recording medium is provided, which are capable of recording and reproducing data with reliability even when blue or blue violet laser light is used as irradiation light. The optical recording medium includes a substrate, and a recording layer formed over...
07/15/2008
7393574Information recording medium
In an information recording medium, a Bi—Ge—Te material is adopted as a phase-change recording layer material. A C—Ta—O material is used for at least any one of first and second boundary layers which are in contact with a recording layer. ...
07/01/2008
7390547Super resolution information storage medium
A super resolution information storage medium includes: a substrate; a first super resolution layer which is formed over the substrate; a second super resolution layer which is formed over the first super resolution layer; and an insertion layer which is disposed be...
06/24/2008
7390546Optical recording medium
An optical recording medium includes a substrate 11 with a concave and convex shape for dividing a track area formed on its surface, an optical recording layer 12 having a compound consisting of at least tin (Sn), nitrogen (N) and oxygen (O) formed on ...
06/24/2008
7384677Metal alloys for the reflective or semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or the semi-reflective layer of optical discs. Alloy additions to silver include magnesium, gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, co...
06/10/2008
7384678Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus
To provide an optical recording medium and the like that is adapted to higher density and higher speed recording of 8 times or more than that of DVD (about 28 m/sec or more) and that exhibits superior repeating and reservation properties. An optical recording medium...
06/10/2008
7381458Recording medium
The main object of the present invention is to provide a recording medium which makes high densification of information possible, particularly a write-once-read-many optical recording medium having good recording signal characteristics to a wide range of recording p...
06/03/2008
7374805Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or semi-reflective coating layer of optical discs. Elements that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scand...
05/20/2008
7371448Phase-change recording media based on the Ga-Sb-Te system for ultra-high density optical recording
This invention discloses a novel rewritable phase-change recording medium for optical data storage, which is based on the GaSbTe ternary alloy system. The designed compositions reside on the Sb7Te3—GaSb and Sb2Te3—GaSb...
05/13/2008
7368157Information storage medium and apparatus for recording/reproducing information thereon
An information storage medium reduces low frequency noise, and an apparatus records and/or reproduces information thereon. The information storage medium includes a substrate; a recording layer formed on the substrate and including at least two materials in which th...
05/06/2008
7364644Silver selenide film stoichiometry and morphology control in sputter deposition
A method of sputter depositing silver selenide and controlling the stoichiometry and nodular defect formations of a sputter deposited silver-selenide film. The method includes depositing silver-selenide using a sputter deposition process at a pressure of about 0.3 m...
04/29/2008
7357969Phase-change optical recording medium
A phase-change optical recording medium has a first information layer including a phase-change optical recording film arranged in a position close to the light incident side, a second information layer including another phase-change optical recording film arranged i...
04/15/2008
7357970Optical recording medium
An optical recording medium comprising: a substrate 11; and a recording layer 12, formed on substrate 11; and characterized in that recording layer 12 contains palladium oxide as the main component and contains oxygen at an amount of 19 a...
04/15/2008
7351516Optical information recording medium
An optical information recording medium, especially a CD-RW medium, that can undergo direct overwriting at high speed is disclosed. The optical information recording medium includes a transparent substrate, at least a recording layer and a reflective layer on or abo...
04/01/2008
7335459Phase-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 light, and an interface film formed of hafnium oxide, or a mixture of...
02/26/2008
7316837Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or semi-reflective coating layer of optical discs. Elements that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scand...
01/08/2008
7314657Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or the semi-reflective layer of optical discs. Alloy additions to silver include gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, cobalt, manga...
01/01/2008
7314660Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or the semi-reflective layer of optical discs. Alloy additions to silver include magnesium, gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, co...
01/01/2008
7294382Phase-change optical recording medium
A phase-change optical recording medium has a phase-change recording film to which recording and erasure can be reversibly performed by irradiation with light, and at least one dielectric film formed of a SiOC film containing Si, O and C, and having a carbon concent...
11/13/2007
7291375Phase-change optical recording medium
A phase-change optical recording medium has a phase-change recording film to which recording and erasure can be reversibly performed by irradiation with light, and at least one dielectric film formed of a SiOC film containing Si, O and C, and having a carbon concent...
11/06/2007
7291374Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
A silver-based alloy thin film is provided for the highly reflective or semi-reflective layer of optical discs. Alloy additions to silver include gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, cobalt, indium, c...
11/06/2007
7288224Method of producing a sputtering target
A sputtering target contains a target material including as constituent elements Ag, In, Te and Sb with the respective atomic percents (atom. %) of α, β, γ and δ thereof being in the relationship of 0.5≦α
10/30/2007
7255906Information recording medium and method for producing the same
In an information recording medium of the present invention, a recording layer and first and second dielectric layers are formed on a surface of a substrate. In the recording layer, at least one of recording and reproduction is caused by irradiation of light or appl...
08/14/2007
7241549Information recording medium
An optical recording medium configured with a light reflection layer; a first protection layer; a recording layer containing a phase-change material which changes between crystalline and amorphous phases by a light irradiation; a second protection layer; and one of ...
07/10/2007
7232598Super resolution optical disc
Disclosed is a super resolution optical disc. The super resolution optical disc comprises at least two mask layers. In one embodiment, the super resolution optical mask comprises a plurality of mask layers and impact absorption layers between the mask layers, and ma...
06/19/2007
7214416Phase-change optical recording medium
A phase-change optical recording medium has a recording film that brings about reversible phase-change between a crystalline phase and an amorphous phase upon irradiation with light and an interface film formed in contact with at least one surface of the recording f...
05/08/2007
7172797Optical information medium and a method of manufacturing the medium
An optical information medium (20) for recording, such as DVR-blue, and a method for manufacturing such a medium (20) is provided. Reading from and recording onto the medium (20) is performed by means of a focused radiation beam (10) havi...
02/06/2007
7172798High density read only optical disc
A high density read only optical disc is provided. The high density read only optical disc includes a substrate having pits formed thereon; a crystalline reading assist layer; a first dielectric layer; and a mask layer composed of a metal oxide. The high density rea...
02/06/2007
7169454Multi-stack optical data storage medium and use of such medium
A description is given of a multi-stack optical data storage medium (20) for rewritable recording using a focused radiation beam (30) entering through an entrance face (16) of the medium (20) during recording. The medium (20) has a...
01/30/2007
7169455Optical information recording medium and method for manufacturing the same
An optical information recording medium on which information can be recorded and reproduced by using a laser beam is provided. The medium includes a substrate with a guide groove and a multilayered metal film including at least a first metal layer, a barrier layer a...
01/30/2007
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