| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 369284000 | Radiation beam modified or controlling (e.g., photosensitve, optical track) | 25 |
| 20080205257 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording and reproducing device | 08-28-2008 |
| 20080212459 | Method of Writing on an Optical Recording Medium, Optical Recording Medium, and Method of Manufacturing an Optical Recording Medium - The present invention relates to a method of writing information on an optical recording medium ( | 09-04-2008 |
| 20080253273 | Computer Program Product for Controlling an Apparatus for Accessing Dual-Path Optical Recording Media - A dual-path optical recording medium and an apparatus for accessing such are disclosed. The dual-path optical recording medium includes a substrate, an intermediate recording layer, a holographic recording layer and a dichronic mirror layer. The intermediate recording layer is a rewritable data storage layer with a relatively low storage capacity. The holographic recording layer is a write-once data storage layer with a relatively high storage capacity. The dichronic mirror layer is located between the holographic recording layer and the intermediate recording layer. The apparatus for accessing the dual-path optical recording medium includes a first light module capable of generating a first laser light, and a second light module capable of generating a second laser light. | 10-16-2008 |
| 20080259783 | INFORMATION PROCESSING DEVICE, ACCESS DEVICE, RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An information processing device ( | 10-23-2008 |
| 20080273451 | OPTICALLY-READABLE DISK WITH COPY PROTECTION DEVICE - An optically-readable disk includes a device that disrupts readability of the disk when the disk is spun at an angular velocity substantially greater than required to play the disk in its intended playing device, or for when a defined integral of velocity and time is exceeded. The device may include a fluid container that disperses a data-disruptive fluid. The device may include a membrane or layer that is disrupted when the disk is rotated above a defined angular velocity, or when a defined integral of velocity and time is exceeded. | 11-06-2008 |
| 20080285431 | Optical disk medium and tracking method - A super-resolution material is formed in only a data pit, in a low temperature state of the super-resolution material, reflectivity of each of a pit portion and a space portion and an optical phase difference therebetween are set to be sufficiently small, in a high temperature state, and at least the optical phase difference between the pit and the space is set to be larger than the aforementioned value in an absolute value. Accordingly, by conducting irradiation with an appropriate read power by which substantially only one data track width can be heated to a high temperature state, a good push-pull signal can be obtained even with a track pitch being less than a diffraction limit. At the same time, by an optical device having functions such as a switching means with a DPP type, an offset correcting means of the push-pull signal due to lens shift, a shaping means of the push-pull signal, a learning means of read power, and the like, there is provided an optical disk device that corresponds to the optical disk medium of the present invention and achieves an increase in capacity. | 11-20-2008 |
| 20080291816 | Optical Recording Medium - The object of the present invention is to provide an optical recording medium which includes a substrate, a first information layer and a second information layer, the first information layer and the second information layer are disposed on the substrate through an intermediate layer in a laminar structure; recording and reproducing is performed on each of the two information layers by laser beam irradiation from the first information layer side; the second information layer is provided with at least a reflective layer, a dielectric layer, and a second dye recording layer formed in this order; and the dielectric layer is formed from any one of materials selected from the group consisting of oxides, nitrides, sulfides, carbides or mixtures thereof from any one of elements which are not same as metal elements and semi-metal elements used for forming the reflective layer. | 11-27-2008 |
| 20080310295 | METHODS FOR EXTRA APPENDING DATA IN A MULTIPLE LAYER DISC - A method for extra appending data in a multiple layer disc is provided. The capacity of the data zone in the multiple layer disc is fixed, and each layer comprises a plurality of appended sessions. When multiple layer disc is mounted, it is determined whether data is appended in zones following a middle zone. If the data is appended in the zones following the middle zone, a first jump address is obtained from a table of extended contents to serve a start address of appending the data. Data is appended to the multiple layer disc. An end address of appending the data is recorded in the table of extended contents to serve a second jump address for a next appending operation. | 12-18-2008 |
| 20090016209 | POLYESTER FILM, PROCESS FOR PRODUCING THE SAME AND USE THEREOF - The present invention relates to a polyester film produced by melt-extruding a polyester composed of a dicarboxylic acid unit and a diol unit, wherein 1 to 80 mol % of the diol unit is a unit containing a cyclic acetal skeleton, and the polyester film has an in-plane retardation of 20 nm or less at a wavelength of 550 nm. The polyester film is an optically isotropic polyester film which is easily produced by an extrusion-molding method and has an economical advantage. The polyester film is useful for production of optical members or optical products such as phase difference films, protective films for polarizing plates, light diffusion films, lens sheets, anti-reflection films and optical information recording media. | 01-15-2009 |
| 20090086617 | METHOD OF PRINTING MARKS ON AN OPTICAL ARTICLE - An optical article with a plurality of optically detectable marks on a first surface of the optical article, wherein a mark of the plurality of marks has a thickness of less than or equal to about 1 micrometer, and wherein the plurality of optically detectable marks have uniform thickness. | 04-02-2009 |
| 20090154332 | OPTICAL INFORMATION RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF - An optical information recording medium has at least an optical reflective layer, an optical recording layer, an protective layer, and an optical transparency layer formed in that order on the main surface of a disc-shaped substrate. An area in which the protective layer is formed is made wider than an area in which the reflective layer is formed, and made narrower than an area in which the optical transparency layer is formed. | 06-18-2009 |
| 20090245080 | PLAYER-READABLE CODE ON OPTICAL MEDIA - An optical article for playback in a player includes a plurality of optically detectable marks disposed on a surface of the optical article; wherein the plurality of optically detectable marks are in a pre-determined combination of a first state and a second state; and at least one first control logic comprising at least one sector; wherein each optically detectable mark is associated with a particular first control logic; wherein each first control logic is executed only when its associated optically detectable mark is in a pre-determined state; and wherein a customized player-readable code is determined using a combination of the plurality of optically detectable marks and their associated first control logic. A method of making the optical article, a method of customizing the optical article, a method and a system for the playback of the optical article are also included. | 10-01-2009 |
| 20090279416 | Optical disc and optical recording method - The invention provides an optical disc ( | 11-12-2009 |
| 20090279417 | INFORMATION RECORDING APPARATUS - An information recording apparatus is disclosed that includes a control unit that controls operations of recording user data on an information recording medium having plural recording layers. When a second layer following a first layer of the recording layers remains unrecorded at the time user data recording performed in response to a user data recording request is completed, the control unit records temporary lead-out information after the recorded user data. | 11-12-2009 |
| 20090323508 | PHOTOSENSITIZED COMPOSITE MATERIAL, THREE-DIMENSIONAL MEMORY MATERIAL AND RECORDING MEDIUM, OPTICAL POWER LIMITING MATERIAL AND ELEMENT, AND PHOTOCURING MATERIAL AND STEREOLITHOGRAPHY SYSTEM, AND FLUORESCENT MATERIAL FOR MULTIPHOTON FLUORESCENCE MICROSCOPE AND MULTIPHOTON FLUORESCENCE MICROSCOPE - A photosensitized composite material and a material, an element, a device, and the like, which employ the photosensitized composite material, are provided. In the photosensitized composite material, multiphoton absorption compounds are highly sensitized for practical use by utilizing an enhanced plasmon field. The photosensitized composite material has a structure where the multiphoton absorption compounds are linked to the surface of a fine metal particle through linking groups. The fine metal particle generates an enhanced surface plasmon field in resonance with a multiphoton excitation wavelength. The multiphoton absorption compounds have a molecular structure enabling multiphoton absorption. The photosensitized composite material is contained in or used for, for example, a three-dimensional memory material and a three-dimensional recording medium, an optical power limiting material and an optical power limiting element, a photocuring material and a stereolithography system, and a fluorescent material for a multiphoton fluorescence microscope and a multiphoton fluorescence microscope. | 12-31-2009 |
| 20100067361 | RECORDING MEDIUM - It is an object of the present invention to achieve a recording medium more excellent in preservation resistance than conventional optical recording media. | 03-18-2010 |
| 20100074094 | OPTICAL INFORMATION RECORDING MEDIUM, METHOD FOR MANUFACTURING OPTICAL INFORMATION RECORDING MEDIUM, AND BCA (BURST CUTTING AREA) MARKING METHOD - The invention provides an optical information recording medium which is compatible with Blu-ray for recording a BCA signal by laser marking, in which the optical information recording medium has superior reading properties and is improved in recording properties and reliability in a BCA portion. A reflective film | 03-25-2010 |
| 20100110871 | OPTICAL INFORMATION RECORDING MEDIUM - The recording/reproducing quality of a multilayer optical information recording medium deteriorate not only due to interference from other layers caused by light converging on other information layers but also due to stray light converging on the surface of a protective layer and stray light that does not converge on other information layers but rather returns to an optical head through the same optical path as the reproducing signal. The thickness composition of intermediate layers ( | 05-06-2010 |
| 20100182895 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a recording layer in which a recording mark formed of a cavity is formed in accordance with a light for recording, and which contains therein a compound having a skeleton expressed by the general formula (1): | 07-22-2010 |
| 20100182896 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes a recording layer that includes a mark layer in which recording marks formed in accordance with condensed recording light are aligned and has a recording light absorption amount of 20.8% or less with respect to an innermost depth as a depth of the mark layer from a side thereof that the recording light enters to a side thereof that is most distant from the side that the recording light enters, and a change amount of a light absorption amount with respect to measurement light having a wavelength 10 nm shorter than that of the recording light at a time a light absorption amount with respect to measurement light having the same wavelength as the recording light is used as a reference, of 8.0% or more per 0.30 mm. | 07-22-2010 |
| 20100290332 | OPTICAL DATA CARRIER WITH REFERENCE LAYER - An optical information carrier is presented. The information carrier comprises at least one active layer for recording/reading data in/from as a result of one- or multi-photon interaction; and at least one reference layer structure associated with said at least one active layer. The reference layer structure comprises at least one dielectric material and is different from that of the active layer in its optical properties with respect to one- or multi-photon interaction. Detection of light returned from the reference layer structure allows to control a process of focusing an optical beam onto an addressed recording plane in the active layer during at least one of the recording and reading processes. | 11-18-2010 |
| 20110222392 | READ-ONLY OPTICAL INFORMATION RECORDING MEDIUM AND SPUTTERING TARGET FOR DEPOSITING REFLECTIVE FILM FOR THE OPTICAL INFORMATION RECORDING MEDIUM - Provided is a read-only optical information recording medium (for instance, a dual-layer BD-ROM), which uses blue laser and is provided with a reflecting film which has sufficiently high reflectivity while ensuring optical transparency required in manufacture, has excellent reproduction stability when used for an optical information recording medium and has excellent durability. The read-only optical information recording medium includes a structure wherein a plurality of laminated layers of the reflecting film and the optical transparent layer are formed on a substrate, and reproduces information by means of blue laser. The reflecting film closest to the substrate among the reflecting films is substantially composed of an Al-based alloy containing 0.5-3.0 atm % of Ti, and has a film thickness of 10 nm or more but not more than 30 nm. | 09-15-2011 |
| 20120075983 | INFORMATION RECORDING MEDIUM, INFORMATION SUPPLY SYSTEM, AND OPTICAL INFORMATION DEVICE - An information recording medium includes a first information recording layer and a second information recording layer. The first information recording layer is formed at a laser beam entrance surface, and is configured so that information can be recorded thereupon and/or reproduced therefrom using a first objective lens having a numerical aperture NA | 03-29-2012 |
| 20120127848 | RECORDING MEDIUM, METHOD OF INITIALIZING THE SAME, INITIALIZING DEVICE, AND REPRODUCING METHOD - There is provided a method of initializing a recording medium having a first surface and a second surface which face to each other with a recording layer in between. The method includes forming interference patterns to have a pitch wider than λr/2N by applying initializing light of a plane wave with a wavelength λf to the recording layer from both of the first surface side and the second surface side, where λr is a wavelength of reproducing light applied to the recording layer at the time of reproducing recorded information, and N is an average refractive index of the recording layer. | 05-24-2012 |
| 20130336102 | COPY PROTECTION METHOD FOR OPTICAL STORAGE DEVICE - A copy protection method includes the steps of providing an optical storage device having a substrate layer and a data structure layer coated on the substrate layer and containing a set of raw data codes; forming on the data structure layer at least one polarizing layer capable of causing a change in a light beam; and forming on the polarizing layer a scratch protection layer. The polarizing layer is located between the data structure layer and an optical reading device to influence a light beam irradiated thereon by the optical reading device, so that the set of raw data codes being optically accessed is conditionally converted into a different set of physical data codes. By providing the polarizing layer on the optical storage device to change the data codes that can be obtained by the optical reading device, it is able to stop illegal copying of the optical storage device. | 12-19-2013 |
