| Patent application number | Description | Published |
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| 20090016188 | MULTI-LAYER INFORMATION RECORDING MEDIUM, INFORMATION RECORDING/REPRODUCING DEVICE AND MULTI-LAYER INFORMATION RECORDING MEDIUM MANUFACTURING METHOD - By assuring lower compatibility with information recording media already on the market or of known formats, information is recorded/reproduced on/from a multi-layer information recording medium of a new format using an information recording/reproducing device already widely in use. The multi-layer information recording medium includes a plurality of layered information planes L | 01-15-2009 |
| 20090046567 | OPTICAL INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING OPTICAL INFORMATION RECORDING MEDIUM - An optical information recording medium, includes a disc-shaped substrate, at least one information recording layer formed over a recording/reproducing-side main surface of the substrate, a light transmitting layer formed over the information recording layer, and a protecting layer formed to cover the light transmitting layer and at least one part of a side end surface perpendicular to the main surface of the substrate. At least the part of the side end surface is covered with the protecting layer for covering the recording/reproducing-side main surface, and the surface of the protecting layer covering at least the part of the side end surface has a larger surface roughness than that of the surface of the protecting layer covering the upper of the recording/reproducing-side main surface. | 02-19-2009 |
| 20090075016 | MULTILAYER INFORMATION RECORDING MEDIUM AND PRODUCTION METHOD THEREFOR - Disclosed herein is a method for producing a multilayer information recording medium having at least two information recording layers, in which a resin layer is formed between each pair of the information recording layers, the method including: holding a substrate; feeding a resin onto the substrate; and removing the excess resin by moving a squeegee throughout the entire surface of the substrate so that the interval between the bottom surface of the squeegee and the surface of the substrate is kept constant. The substrate may have a resin-coated region, onto which the resin is to be applied, and a non-resin-coated region, onto which the resin is not to be applied. In this case, the resin-coated region has a smaller contact angle with the resin than the non-resin-coated region. The method for producing a multilayer information recording medium may further include, prior to feeding a resin onto the substrate, subjecting a specified area of the substrate to an oil repellent treatment to increase the contact angle of the specified area with the resin. | 03-19-2009 |
| 20090239022 | INFORMATION RECORDING MEDIUM AND METHOD FOR PRODUCTION THEREOF - The information recording medium of the present invention is provided with a substrate and an information layer including a recording layer. Rerecording and reproducing of information are performed by irradiating the information layer with a laser beam. The recording layer contains, as its main component, a material composed of Te, O, and M, where M denotes at least one element selected from Ru, Rh, Pd, Ag, Re, Os, Ir, Pt, and Au. In the material, the content of Te atom is 1 to 19 atom %, the content of O atom is 20 to 70 atom % (preferably 40 to 70 atom %), the content of M atom is 11 to 79 atom % (preferably 11 to 59 atom %, and more preferably more than 35 atom %). The material is, for example, is indicated as the region enclosed by A, B, C, and D, preferably by C, D, E, and F, and more preferably by E, F, H, and G, in the composition diagram of a ternary material of Te—O—Pd shown in FIG. | 09-24-2009 |
| 20090263613 | OPTICAL INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME - An optical information recording medium that can simultaneously achieve both a high transmittance and high signal quality of an information layer, improve the reliability of long-term conservation, and reduce the manufacturing cost, and a manufacturing method thereof are provided. To achieve this, according to the present invention, in an optical information recording medium comprising at least one information layer on a substrate, at least one of the information layers has a recording layer and a dielectric layer, the recording layer contains Te, O, and M (M is one or a plurality of elements selected from Au, Pd, and Pt) as major components, the dielectric layer has a thermal conductivity of 0.01 W/K·cm or more, and the dielectric layer has an extinction coefficient of 0 through 1.0 inclusive. | 10-22-2009 |
| 20090280286 | MULTILAYER INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING THE SAME - A multi-layer information recording medium comprising a substrate that has an inner circumference and an outer circumference, three or more information recording layers and resin layers disposed between the information recording layers, wherein positions of the ends on the inner circumference side of the resin layers are different from each other in at least one combination of two neighboring resin layers, and the end on the inner circumference side of at least one of the resin layers is covered by another resin layer. | 11-12-2009 |
| 20090290467 | MULTILAYER INFORMATION RECORDING MEDIUM - A multilayer information storage medium according to the present invention includes: a substrate; at least three information storage layers, which are stacked one upon the other on the substrate; a plurality of transparent layers, each of which is arranged between its associated adjacent ones of the information storage layers; and a transparent coating layer. At least two of the transparent layers have mutually different thicknesses. If a laser beam with a wavelength of 400 nm to 410 nm is incident perpendicularly on the medium through the transparent coating layer, two of the information storage layers that sandwich the thinnest one of the transparent layers have a higher returning light intensity and/or a higher degree of modulation than the other information storage layers. | 11-26-2009 |
| 20090309906 | INKJET APPLICATION DEVICE, MULTI-LAYERED INFORMATION RECORDING MEDIUM, AND METHOD OF PRODUCING THE MEDIUM - An inkjet coating device, which applies a radioactive-ray curable resin to a subject, while moving either the subject or an inkjet head relative to the other, includes an inkjet head provided with an inkjet unit having an inkjet nozzle for ejecting droplets of the radioactive-ray curable resin and a radioactive-ray irradiation unit that is placed on the rear side of the inkjet unit in a moving direction relative to the subject so as to be spaced therefrom with a predetermined distance, and irradiates the radioactive-ray curable resin coated onto the subject with radioactive rays; and a driving unit that moves the inkjet head relative to the subject. | 12-17-2009 |
| 20100003444 | MANUFACTURING METHOD FOR MULTILAYER INFORMATION RECORDING MEDIUM, MANUFACTURING APPARATUS FOR MULTILAYER INFORMATION RECORDING MEDIUM, AND MULTILAYER INFORMATION RECORDING MEDIUM - An apparatus for manufacturing a multi-layered information recording medium of the present invention is an apparatus for manufacturing the multi-layered information recording medium for discharging a stiffening resin to a substrate while relatively moving at least one of the substrate and ink jet heads wherein the apparatus has a plurality of ink jet heads disposed on every different kind of the discharged stiffening resin, and constituted so as to stack-coat the stiffening resin to the substrate. With the constitution, a resin intermediate layer of a thick film, for example, greater than 10 μm having uniform thickness distribution and excellent in surface smoothness can be formed. | 01-07-2010 |
| 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 |
| 20100129567 | METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM - A problem has been the pronounced build-up of resin layers in the innermost peripheral region and/or the outermost peripheral region, which are the ends of the coating region, that occurs when layers of resin are applied over intermediate resin layers that have been cured. In an inkjet coating method, the ratio of the amount of resin dropped in the innermost peripheral coating region ( | 05-27-2010 |
| 20100137506 | PROCESS FOR PRODUCING MULTI-LAYERED INFORMATION RECORDING MEDIUM, SIGNAL TRANSFER SUBSTRATE, AND PROCESS FOR PRODUCING THE SIGNAL TRANSFER SUBSTRATE - In a process for producing a multilayered information recording medium of the present invention, a process for forming a second signal substrate ( | 06-03-2010 |
| 20100151177 | MULTILAYERED INFORMATION RECORDING MEDIUM AND PROCESS FOR PRODUCING SAID MULTILAYERED INFORMATION RECORDING MEDIUM, AND APPARATUS FOR PRODUCING MULTILAYERED INFORMATION RECORDING MEDIUM AND SCREEN CONSTITUTING SAID PRODUCTION APPARATUS FOR PRODUCING MULTILAYERED INFORMATION RECORDING MEDIUM - The present invention provides a method for manufacturing a multilayer information recording medium including at least two information recording portions and a resin layer interposed between the information recording portions, both of which are disposed on a signal substrate. The method includes a first process of forming a predetermined information recording portion on one principal surface of the signal substrate and a second process of passing a part of a resin-containing coating, which is supplied on a screen having an application region with a plurality of first pores and a removal region with a plurality of second pores, through the first pores by sliding a squeegee on the screen so as to form a coating layer on the predetermined information recording portion, and curing the resin contained in the coating layer so as to form the resin layer. The first process and the second process are carried out respectively a predetermined number of times. In each second process, at least a part of the resin-containing coating that has not been applied on the predetermined information recording portion and that remains on the screen is allowed to pass through the second pores so as to be removed from the screen surface. | 06-17-2010 |
| 20100195474 | OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING AND REPRODUCTION APPARATUS - A disk-shaped optical information recording medium ( | 08-05-2010 |
| 20100255347 | INFORMATION RECORDING MEDIUM AND METHOD FOR MANUFACTURING SAME - A method for manufacturing an information recording medium may used for manufacturing the information recording medium which has a recording layer and a resin layer that may be provided in contact with the recording layer. In the method, the resin layer is made of at least two kinds of ultraviolet curing resins. First resin layer is formed by screen printing. Second resin layer is formed on the first resin layer as to compensate a surface property. Consequently, a surface nature of the resin layer can be improved. | 10-07-2010 |
| 20110069603 | MULTILAYER INFORMATION RECORDING MEDIUM MANUFACTURING METHOD, MULTILAYER INFORMATION RECORDING MEDIUM MANUFACTURING APPARATUS, AND MULTILAYER INFORMATION RECORDING MEDIUM - The invention provides a multilayer information recording medium manufacturing method, a multilayer information recording medium manufacturing apparatus, and a multilayer information recording medium that enable to make a distance from a light incident surface of the multilayer information recording medium to a farthest information recording layer thereof uniform within a plane of the medium. A multilayer information recording medium manufacturing apparatus ( | 03-24-2011 |
