Patent application number | Description | Published |
20080199602 | Method for manufacturing magneto-optical recording medium - A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reliably; as a result a magneto-optical recording medium with satisfactory recording and reproduction characteristics can be provided. The method is to manufacture a magneto-optical recording medium in which on a substrate | 08-21-2008 |
20080253271 | OPTICAL DISK AND METHOD OR PRODUCING OPTICAL DISK - An optical disk is disclosed. The optical disk includes a substrate having lands and pits arranged and formed along a recording track so that data are recorded; a reflective film deposited on the substrate; and a protective layer formed on the reflective film, where an edge of the pits in the array direction is irradiated with light from a side of the protective layer to deform the pits, so that pit data are rewritten and recorded, and the reflective film includes an alloy formed of AlFeX having Al as a main component, where X contains any one or more of Ti, Cu, Au, Pt, and Si. | 10-16-2008 |
20090028014 | RECORDING DEVICE, RECORDING METHOD, DISC MANUFACTURING METHOD AND OPTICAL DISC RECORDING MEDIUM - An optical disc recording medium is irradiated with laser light having a predetermined laser power to deform an irradiated portion of a substrate into a protruding portion. Since the substrate is deformed so as to have protruding portions, a reflecting layer arranged on the substrate is also deformed so as to have protruding portions. For a pit, the deformed state of a protruding portion allows to obtain a reproduced signal level equivalent to that in each land. For a land, the deformed state of a protruding portion allows to obtain a reproduced signal level equivalent to that in each pit. Since the deformed state of each protruding portion can be controlled on the basis of the power of the laser light for irradiation, pit-to-land deformation and land-to-pit deformation can be performed by setting the laser power. Thus, recorded data can be rewritten on the optical disc recording medium recorded with the data using a combination of pits and lands formed in the substrate. | 01-29-2009 |
20090046562 | LIGHT SOURCE UNIT, OPTICAL DETECTOR UNIT, OPTICAL PICKUP DEVICE, AND OPTICAL DISK DEVICE - A light source unit comprises a plurality of light sources emitting a plurality of light beams. A plurality of volume hologram elements are provided for the plurality of light sources respectively, each volume hologram element having a plane of incidence of an incoming light beam and a plane of outgoing radiation of a diffracted light beam which are perpendicular to each other, the plurality of volume hologram elements having mutually different Bragg conditions in which an optical intensity of a diffracted light beam is set to a maximum. | 02-19-2009 |
20090075014 | OPTICAL RECORDING METHOD AND REPRODUCING METHOD - A method of recording on an optical recording medium which comprises a multi-photon absorption material and fine particles which have an sensitizing effect of enhancing a multi-photon absorption process of the multi-photon absorption material by a plasmon-enhanced field having anisotropy, the method including: deactivating the sensitizing effect of a part of the fine particles by deforming the part of the fine particles. | 03-19-2009 |
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 |
20100055448 | MULTIPHOTON ABSORPTION FUNCTIONAL MATERIAL, COMPOSITE LAYER HAVING MULTIPHOTON ABSORPTION FUNCTION AND MIXTURE, AND OPTICAL RECORDING MEDIUM, PHOTOELECTRIC CONVERSION ELEMENT, OPTICAL CONTROL ELEMENT, AND OPTICAL MODELING SYSTEM USING THE SAME - A multiphoton absorption functional material including one of: fine particles of metal, and fine particles partly coated with the metal, the metal generating enhanced surface plasmon field on a metal surface, wherein the fine particles or the fine particles partly coated with the metal are dispersed in a multiphoton absorption material, and wherein the multiphoton absorption functional material is a bulk body. | 03-04-2010 |
20100056775 | TWO-PHOTON ABSORPTION MATERIAL AND APPLICATION THEREOF - A two-photon absorption material represented by the following General Formula (I): | 03-04-2010 |
20110064903 | METHOD OF MANUFACTURING OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING MEDIUM - There is provided a method of manufacturing an optical recording medium capable of reducing a manufacturing cost of an optical recording medium. When manufacturing an optical recording medium | 03-17-2011 |
20110069602 | PRODUCTION METHOD FOR AN OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING MEDIUM - A production method for an optical recording medium including a substrate, an information recording layer, and a light transmission layer, includes: molding the substrate; forming on the substrate the information recording layer so as to have a multilayer structure including a layer that has been sputtered under a first deposition condition and a layer that has been sputtered under a second deposition condition with use of targets of the same composition; and forming the light transmission layer on the information recording layer. | 03-24-2011 |
20110300324 | OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME - The present invention provides an optical recording medium realizing reduced manufacturing cost of the optical recording medium. An optical recording medium | 12-08-2011 |
20120176883 | RECORDING LAYER FOR OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING MEDIUM, AND SPUTTERING TARGET - A recording layer for optical information recording medium excellent in recording property, an optical information recording medium including the recording layer and a sputtering target useful for formation of the recording layer are provided. A recording layer for an optical information recording medium on which recording is performed through irradiation with laser light, the recording layer including an oxide of a metal of which an absolute value of the standard free energy of oxide formation per 1 mol of oxygen is larger than that of Pd (hereinafter referred to metal X) and a Pd oxide, wherein the Pd oxide includes a Pd monoxide and a Pd dioxide, and wherein a ratio of the Pd atom to a total of the metal X atom and the Pd atom which are contained in the recording layer is 4 to 85 atomic %. | 07-12-2012 |
20120201992 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component. | 08-09-2012 |
20130052389 | OPTICAL RECORDING MEDIUM - [Object] To provide an optical recording medium that can be applied to a write-once optical recording medium having a high capacity of about 25 GB per one layer, and has good recording properties when a multilayered recording layer configuration is provided. | 02-28-2013 |
20130164544 | OPTICAL RECORDING MEDIUM - [Object] To provide an optical recording layer that is capable of controlling a reflectance and a transmittance of each recording layer and obtaining good recording properties in each recording layer | 06-27-2013 |
20140030489 | OPTICAL RECORDING MEDIUM, AND MANUFACTURING METHOD OF OPTICAL RECORDING MEDIUM - There is provided an optical recording medium including a substrate, an information recording layer that is formed on the substrate, and has a recording film including a W oxide and an Fe oxide, and a light transmissive layer that is formed on the information recording layer. | 01-30-2014 |
20140099466 | OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium includes: a substrate; two or more information signal layers provided on the substrate; and a cover layer provided on the information signal layers. At least one of the two or more information signal layers is provided with an inorganic recording layer including Pd oxide, a first protective layer provided on a first main surface of the inorganic recording layer, and a second protective layer provided on a second main surface of the inorganic recording layer. And at least one of the first protective layer and the second protective layer includes a compound oxide of Si oxide, In oxide and Zr oxide as a main component. | 04-10-2014 |
20140119170 | OPTICAL RECORDING MEDIUM - The present technology relates to an optical recording medium for realizing an optical recording medium capable of high-capacity recording. A groove and a land are formed, the groove being concave and the land being convex when seen from a side of a laser light incident surface, both of the groove and the land being recording tracks where recording or reproduction of information is performed. According to this recording layer, a pitch between the groove and the land that are adjacent recording tracks is within a range of 250 nm to 200 nm. Moreover, recording or reproduction of information is performed with respect to the recording tracks by irradiation of laser light whose wavelength is 400 nm to 415 nm by an optical system whose NA is 0.85±0.1. | 05-01-2014 |
20140311632 | METHOD FOR PRODUCING STEEL TUBE FOR AIR BAG - A method for producing a steel tube of high strength and toughness for air bag subjects a steel tube to high-frequency induction heating such that the outer surface temperature T1 (° C.) of the tube measured at the end of high-frequency induction heating is within the range defined by TAc3+40° C.≦T1≦1100° C., TAc3 is the temperature (° C.) of Ac | 10-23-2014 |