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| Number | Title | Issue Date |
| 8189451 | Optical recording medium having auxiliary information and reference clock An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for rec... | 05/29/2012 |
| 8179773 | Optical recording medium having auxiliary information and reference clock An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for rec... | 05/15/2012 |
| 8154981 | Record medium, its manufacturing method, mother disc for record medium, and its manufacturing method Binary information previously recorded in an innermost rim side area is enabled to be stably reproduced. A record medium is formed by sequentially laminating a first information layer 2, an intermediate layer 3, a second information layer 4, and... | 04/10/2012 |
| 8149682 | Wobble information recording method, information recording medium, and recording and reproduction method and apparatus thereof An optical disk and a method for identifying the optical disk making it possible to identify a recording system of the optical disk easily in a short time by a recording and reproduction apparatus when a groove-recording system and a land-recording system are both e... | 04/03/2012 |
| 8144567 | Optical disc and optical disc apparatus A multilayer optical disc has dimples and/or bumps on a surface of at least one of the layers. Dimensions of the dimples and/or bumps, such as size, frequency and pitch, are selected to generate frequency components in light reflected from the surface that are diffe... | 03/27/2012 |
| 8139468 | Optical recording medium and recording and reproducing method using the same It is an object of the present invention to provide an optical recording medium containing a laminated structure of a first deformable material layer containing a phase-change material that absorbs light at a recording wavelength to generate heat and is subject to e... | 03/20/2012 |
| 8139470 | Optical information recording medium, and substrate and manufacturing method for the optical information recording medium In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is ... | 03/20/2012 |
| 8139469 | Compatible optical recording medium A compatible optical recording medium is described, which is designed in such a way that it has the appearance of a read-only optical recording medium for most players and recorders. Further described is a method for manufacturing the recordable optical recording me... | 03/20/2012 |
| 8111605 | Apparatus and method for forming image data on an optical disk The invention provides an optical disk system having at least: an optical disk including, on a substrate having pre-pits, an image-recording layer capable of drawing an image by irradiating a laser light; and a reading device which reads information included in the ... | 02/07/2012 |
| 8111606 | Optical storage medium comprising a multilevel data layer The optical storage medium comprises a substrate layer, a data layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein pits and lands having a size above a diffraction limit of a pickup for reading of the data establish a f... | 02/07/2012 |
| 8094545 | Recording medium, and method and apparatus for recording data in the recording medium A recording medium, and a method and apparatus for recording data in the recording medium. The recording medium including an inner area, a data area, and an outer area includes a first test area contained in the inner area, and a second test area contained in the ou... | 01/10/2012 |
| 8089852 | Storage medium with separate image and data tracks A data storage medium such as an optical disc with separate image and data tracks, and a method and apparatus for forming the same. The medium has a user data storage area with a data track to store user data, and a non-user data image track to store human readable ... | 01/03/2012 |
| RE43056 | Super resolution information reproduction by tracking address information in normal resolution An optical disk includes: a substrate shaped in a disk, and having a recording surface; a plurality of recording tracks formed substantially coaxially on the recording surface; a plurality of information pits, which are reproducible by a super resolution reproductio... | 01/03/2012 |
| 8085650 | Optical encoder having optical encoding disc with light converging portions and light diverging portions An optical encoder includes an optical encoding disc, a light source module, a motor, and an optical detection system. The optical encoding disc includes a plurality of concentric annular tracks. Each track includes a plurality of coding units. Each coding unit incl... | 12/27/2011 |
| 8077590 | Information recording carrier and information reproducing apparatus for the same Plural grooves or lands formed in an information recording carrier include at least a wobbling region and data is recorded wobblingly in this wobbling region by phase shift modulation while recorded digitally with a single or multiple waves as a channel bit. ... | 12/13/2011 |
| 8072872 | Optical storage medium comprising inverted super-resolution pits and lands The optical storage medium comprises a substrate layer, a data layer having a pit/land data structure with data arranged in tracks on the substrate layer, and a nonlinear layer with a super-resolution structure disposed on the data layer, wherein a land having a siz... | 12/06/2011 |
| 8059523 | Optical recording medium for writing data using multiple pulses An optical recording medium including a plurality of recording layers to record/reproduce information using light with a predetermined wavelength, the information being recorded on one of the recording layers using a mark and a space, wherein a channel clock period ... | 11/15/2011 |
| 8036097 | Information recording carrier and information reproducing apparatus for the same Plural grooves or lands formed in an information recording carrier include at least a wobbling region and data is recorded wobblingly in this wobbling region by phase shift modulation while recorded digitally with a single or multiple waves as a channel bit. ... | 10/11/2011 |
| 8018824 | Optical disc recording apparatus An optical pickup is disposed which irradiates a laser beam onto an optical disc where a guide groove having characteristics of thermal interference (heat discoloration) is spirally formed. The optical pickup irradiates the laser beam along the guide groove to condu... | 09/13/2011 |
| 8018823 | Optical recording medium having a relation between groove widths, groove depths and track pitches An information recording medium having a recording track wherein the recording track includes a first recording region R1, a second recording region R2 and a recording region transition section Sx arranged between regions R1 and R2; a tra... | 09/13/2011 |
| 7986611 | High-density optical recording media and method for making same The present disclosure provides a high-density optical storage medium which comprises a substrate structure having a thickness of 1.0 mm or more and including one or more information layers, a high-density information layer bonded via an adhesive spacer layer to the... | 07/26/2011 |
| 7969856 | Optical encoding disc having light converging portions and light diverging portions An exemplary optical encoding disc includes a plurality of concentric annular tracks. Each track includes a plurality of coding units. Each coding unit includes a light converging portion and a light diverging portion. The light converging portions and the light div... | 06/28/2011 |
| 7965617 | Optical data storage medium, apparatus and method for scanning such a medium An optical data storage medium (1) comprising a dye-based recording layer is described. It has substantially parallel tracks for recording user information in a pattern of optically detectable marks, the tracks being provided with a guide groove, the groove b... | 06/21/2011 |
| 7957253 | Multiple recording layers optical disc having physical position information of pre-recording marks An optical disc (101) to and from which information can be reproduced and recorded by laser irradiation is provided with a first recording layer (102) and a second recording layer (104). The first recording layer (102) has a first recordi... | 06/07/2011 |
| 7952985 | Recording medium, its manufacturing method, mother disc for recording medium, and its manufacturing method A recording medium is provided and includes; a substrate having a first area formed with a first groove and a second area formed with a second groove, at least one information layer provided on the substrate, and a protecting layer provided on the information layer.... | 05/31/2011 |
| 7952986 | Reverse optical mastering for data storage disk replicas A data storage master disk and method of making a data storage master disk. The data storage disk master is for use in a data storage disk replication process. The data storage disk molding processes produces replica disks having a surface relief pattern with replic... | 05/31/2011 |
| 7940637 | Optical recording medium having super-resolution structure for improvement of reproducing stability and noise characteristic in low frequency band A super-resolution optical recording medium includes a reflective layer formed on a substrate, a recording layer for recording information thereon, a super-resolution layer made of a chalcogenide semiconductor material, and a first and a second dielectric layers lam... | 05/10/2011 |
| 7936661 | Optical information recording medium Provided is an optical information recording medium that can be recorded with data with only a special recording apparatus and the recorded data can be read out with a general recording/reproducing apparatus. The optical information recording medium includes a disc-... | 05/03/2011 |
| 7929404 | Information recording medium, information recording apparatus, and computer program An information recording medium (100) is provided with a plurality of recording layers (L0 layer, L1 layer) to record therein record information, and property information (200) indicating properties of the each recording layer is recorded... | 04/19/2011 |
| 7929405 | Recordable type information recording medium, information recording apparatus, and information recording method In a recording disc, a straight groove (31) and a position determining pit (33) are formed in an inner circumference area (21), and a straight groove (34) and an over-run preventing pit (36) are formed in an outer circumference are... | 04/19/2011 |
| 7924696 | Optical recording medium An optical recording medium of a pitting recording type, to which recording marks are formed by irradiation with a violet laser beam having a wavelength λ in the range of about 380 to about 450 nm, includes a substrate having a surface provided with guide grooves a... | 04/12/2011 |
| 7916618 | Optical pickup and information device An optical pickup for irradiating an information recording medium, such as a DVD, with a laser beam when an information signal is recorded or reproduced, and information equipment provided with the optical pickup. ... | 03/29/2011 |
| 7916617 | Recognizable patterns in adjacent tracks of ROM record carriers for simultaneous scanning for copy protection In order to distinguish a duplicated record carrier from an original record carrier, a pattern is included in a ROM type record carrier. The pattern is oriented perpendicular to the reading direction of the record carrier. During illegal duplication the spatial rela... | 03/29/2011 |
| 7911929 | Optical disk read only memory An optical disk read only memory having an information recording surface with a concave-convex pattern formed on the basis of a first signal and a reflective film covering the surface. The disc medium includes: an additional information recording section formed on a... | 03/22/2011 |
| 7911930 | Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information An information recording medium includes a plurality of layers for recording or reproduction of information by irradiation, wherein each of the layers includes an emboss portion and wobble portion including wobbles of a first frequency and a second frequency that is... | 03/22/2011 |
| 7911931 | Optical information recording medium, and substrate and manufacturing method for the optical information recording medium In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is ... | 03/22/2011 |
| 7907502 | Optical information recording medium, its information recording/reproducing method, and information recording/reproducing device An optical information recording medium includes a substrate, n information recording layers provided on the substrate, and spacer layers, each of which is provided so as to be interposed between the information recording layers, wherein each of (n−1) or more of t... | 03/15/2011 |
| 7907503 | Optical recording medium and recording/reading method therefor In a single-sided incident type optical recording medium having a plurality of dye containing recording layers, sufficient reflectance and excellent recording characteristics necessary to record or read information in or from a dye containing recording layer positio... | 03/15/2011 |
| 7907504 | Optical recording medium having auxiliary information and reference clock An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for rec... | 03/15/2011 |
| 7903535 | Optical information recording medium and manufacturing method of the same There is provided a new medium structure to record a bar code for copyright protection or the like in an optical information recording medium capable of recording and reproducing information by a laser with respect to a dye. When a laser beam 30 is irradiated... | 03/08/2011 |
