| Mitsubishi Kagaku Media Co., Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110311752 | OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MATERIAL AND METAL COMPLEX COMPOUND - [Problem]: An optical recording medium having a capability of recording and/or reading high density optical information using a short wavelength laser light is provided.
| 12-22-2011 |
| 20110069595 | AZO METAL CHELATE DYE AND OPTICAL RECORDING MEDIUM - To provide a dye to be used for an optical recording medium excellent in both high speed recording characteristics and reproduction durability. | 03-24-2011 |
| 20100214901 | OPTICAL RECORDING MEDIUM AND METHOD OF RECORDING/READING IT - To provide an optical recording medium of which mechanical properties and storage stability will not be impaired, and which will show little deterioration in signal properties even after being left to stand at high temperature under high humidity. | 08-26-2010 |
| 20100173114 | OPTICAL RECORDING MEDIUM AND AZACYANINE DYE - An optical recording medium on which high-density recording and reading of optical information can be conducted by a short-wavelength light such as a blue laser beam is provided. | 07-08-2010 |
| 20100166999 | OPTICAL RECORDING MEDIUM - The invention is principally to provide an archival optical recording medium of high quality which has satisfactory recording/reading characteristics when used in high-speed recording and high-density recording. The invention accomplishes the object with an optical recording medium comprising a resin substrate, a recording layer comprising an organic dye, and a reflective layer, wherein the reflective layer has a first reflective layer and a second reflective layer in this order from the side close to the recording layer, the second reflective layer has a thermal conductivity lower than the thermal conductivity of the first reflective layer, and the first reflective layer has a film thickness larger than the thickness of the second reflective layer. | 07-01-2010 |
| 20100135132 | OPTICAL RECORDING MEDIUM WITH POWER CALIBRATION AREAS AND A RECORDING METHOD THEREFOR WITH OPTIMUM POWER CONTROL - In an optical recording medium having a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, an optimum recording power to each of the recording layers can be determined. The optical recording medium has a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, and each of the recording layers has a power calibration area (PCA) for optimizing the intensity of the laser beam. | 06-03-2010 |
| 20100119764 | CYANINE DYE AND OPTICAL RECORDING MEDIUM - To provide an optical recording medium on which recording/retrieving of high density optical information is possible by a short wavelength light such as a blue laser. | 05-13-2010 |
| 20100098898 | AZO METAL CHELATE DYE AND OPTICAL RECORDING MEDIUM - The invention provides an azo metal chelate dye suitable for use in a recording layer of an optical recording medium capable of high-speed recording or an optical recording medium having plural recording layers, and an optical recording medium. The azo metal chelate dye comprises an azo dye compound represented by the general formula (1) and Zn | 04-22-2010 |
| 20100098887 | OPTICAL RECORDING MEDIUM AND INK COMPOSITION - Disclosed is an optical recording medium which can increase the gloss of a print receptive layer provided on a level surface and can provide a high quality print. An optical recording medium ( | 04-22-2010 |
| 20100090358 | PROCESS AND APPARATUS FOR PRODUCING OPTICAL RECORDING MEDIUM - To produce an optical recording medium having a good concavo-convex shape whereby optical information recording/retrieving is stabilized. | 04-15-2010 |
| 20100068443 | OPTICAL RECORDING MEDIUM - The invention is principally to provide an archival optical recording medium of high quality which has satisfactory recording/reading characteristics when used in high-speed recording and high-density recording. The invention accomplishes the object with an optical recording medium comprising a resin substrate, a recording layer comprising an organic dye, and a reflective layer, wherein the reflective layer has a first reflective layer and a second reflective layer in this order from the side close to the recording layer, the second reflective layer has a thermal conductivity lower than the thermal conductivity of the first reflective layer, and the first reflective layer has a film thickness larger than the thickness of the second reflective layer. | 03-18-2010 |
| 20100055377 | OPTICAL RECORDING MEDIUM - To provide an optical recording medium excellent in the balance of characteristics, which has a sufficient surface hardness and of which the deformation when the environmental temperature and the environmental humidity change is small. | 03-04-2010 |
| 20100035013 | OPTICAL RECORDING MEDIUM - An optical recording medium is provided which has excellent jitter characteristics and satisfactory recording/reproducing characteristics and is capable of extremely high-density recording. The optical recording medium | 02-11-2010 |
| 20100034074 | INFORMATION RECORDING MEDIUM AND MASTER EXPOSING APPARATUS - Stable focus servo and tracking servo are realized in an information recording medium having a plurality of recording regions having different track pitches and groove shapes. | 02-11-2010 |
| 20100015382 | AZO METAL CHELATE DYE AND OPTICAL RECORDING MEDIUM - The invention provides an azo metal chelate dye suitable for use in a recording layer of an optical recording medium capable of high-speed recording or an optical recording medium having plural recording layers, and an optical recording medium. The azo metal chelate dye comprises an azo dye compound represented by general formula (1) and a metal: | 01-21-2010 |
| 20090263611 | OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MATERIAL AND METAL COMPLEX COMPOUND - [Problem]: An optical recording medium having a capability of recording and/or reading high density optical information using a short wavelength laser light is provided. | 10-22-2009 |
| 20090246687 | AZO-METAL CHELATE DYE AND OPTICAL RECORDING MEDIUM - The azo-metal chelate dye to which the present invention is applied is a compound formed as follows: for example, 1,3,4-thiadiazole ring is selected as the diazo component; the diazo component is combined with a coupler component having condensed rings including a fluorine-substituted alkylsulfonylamino group and an amino group, to form an azo dye compound; and the azo dye compound forms chelate bonds with at least one metal selected from the group consisting of Co, Ni, Cu and Pd. Here, two absorption bands (OD1 and OD2) are seen in the absorption spectrum, which is measured in a range of 400 to 800 nm wavelengths. The azo-metal chelate dye is characterized in that the optical density ratio (OD2/OD1) of the two absorption bands is greater than 1.25. By using this azo-metal chelate dye, an optical recording medium capable of high-speed recording is provided. | 10-01-2009 |
| 20090209421 | THERMAL PRINTING LAYER AND OPTICAL RECORDING MEDIUM - There are provided a thermal printing layer suitable for thermal printing with a thermal head, and further provided a thermal printing layer which exhibits no limitations on selection of materials for the thermal printing layer. It relates to a thermal printing layer capable of thermal printing with a thermal head, which comprises a color former layer comprising a heat-sensitive color development material and a curable resin and a developer layer comprising a developer and a curable resin. Also, it relates to an optical recording medium comprising the thermal printing layer and a recording/reading functional layer. | 08-20-2009 |
| 20090145549 | PROCESS FOR PRODUCING OPTICAL RECORDING MEDIUM AND APPARATUS THEREFOR - An optical recording medium is produced in which air trapping or air bubbling in a resin layer is suppressed, and the resin layer formed has a uniform thickness. | 06-11-2009 |
| 20090135688 | METHOD AND DEVICE FOR PRINTING ON OPTICAL RECORDING MEDIUM AND OPTICAL RECORDING MEDIUM - A printing method applied to an optical recording medium including a recording/playback functional layer enabling recording or playback by a laser beam, an information recording/playback surface irradiated with the laser beam, and a printing layer separated from the information recording/playback surface by the recording/playback functional layer. Address information used for recording or playback is recorded on the recording/playback functional layer. The printing method detects the address information by irradiating the information recording/playback surface with the laser beam, and carries out printing on the printing layer using the detected address information. | 05-28-2009 |
| 20090129220 | INFORMATION RECORDING MEDIUM, INFORMATION REPRODUCING APPARATUS AND METHOD, AND APPARATUS FOR AND METHOD OF MANUFACTURING THE INFORMATION RECORDING - An information recording medium ( | 05-21-2009 |
| 20090053455 | OPTICAL RECORDING MEDIUM, METAL COMPLEX COMPOUND AND ORGANIC DYE COMPOUND - Problem: To provide an optical recording medium having a recording layer improved in light stability that is capable of writing and reading of high-density optical information by a short-wavelength laser beam.
| 02-26-2009 |
| 20090022933 | OPTICAL RECORDING MEDIUM - To provide an optical recording medium exhibiting favorable write/read characteristics in high-speed recording. In an optical recording medium including a reflective layer, a dye-containing recording layer, and a transparent resin layer on a substrate in this order, a barrier layer is disposed between the recording layer and the resin layer, where the barrier layer comprises a material having a bulk thermal conductivity M of 70 W/m·K or more at 300 K and has a thickness t less than 5 nm. | 01-22-2009 |
| 20080205256 | OPTICAL RECORDING MEDIUM, AND RECORDING METHOD AND RECORDING APPARATUS FOR OPTICAL RECORDING MEDIUM - In an optical recording medium having a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, an optimum recording power to each of the recording layers can be determined. The optical recording medium has a plurality of recording layers on which information can be recorded by irradiating a laser beam from one side thereof, and each of the recording layers has a power calibration area (PCA) for optimizing the intensity of the laser beam. | 08-28-2008 |
