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Patent Searching and Data


Matches 301 - 350 out of 1,205

Document Document Title
JPH10199054A
To reduce the disk inclination by laminating disks back to back, which are coated with a photosetting adhesive material, irradiating a second disk front surface with light for a first prescribed time, irradiating a first disk front surfa...  
JPH10199041A
To obtain a two-program information recording medium by covering the light reflection coating surfaces of one or both of first and second disks with a photosetting adhesive material in succession to the formation of these disks and stick...  
JP2778988B2  
JP2778939B2
To reduce the thickness fluctuation of a resin layer and, at the same time, to improve the productivity of a multilayered optical recording medium by forming a substrate unit layer by injecting molten resin between a transparent substrat...  
JPH10188356A
To eliminate the need for use of adhesives over the entire part of substrates of an optical recording medium, such as DVD, formed by joining two sheets of the substrates by fixing two sheets of the substrates by a system to fit the subst...  
JP2771762B2
The invention relates to a device and a method for manufacturing a mould for a disc-shaped registration carrier, said device being provided with a station for applying a photosensitive layer, such as a photoresist layer, to a substrate, ...  
JP2767638B2  
JP2758288B2
Grooved substrates and multilayer structures, especially suitable for optical disks, are taught. The major process steps include spin coating of a supporting plate (1) with dissolved material forming a soft layer (7) thereon, stamping gr...  
JP2751395B2  
JP2748547B2  
JPH10106049A
To prevent the warpage of a substrate due to contraction of a resin immediately after manufacture of a multilayered optical recording medium, the warpage, etc., of the substrate due to water absorption and dehydration of steam in the air...  
JP2742090B2  
JPH1087050A
To provide a disk carrying mechanism which can carry disks by maintaining the evenness of the temperature distribution of the disk, and a disk dryer which can dry the disks evenly by using the above disk carrier mechanism. By rotating (R...  
JP2733579B2  
JP2718992B2  
JP2714188B2  
JP2709144B2  
JP2708847B2  
JP2708229B2  
JPH1029724A
To increase/decrease the number of stations with a simple method by composing each station of a plate interposed continuously between two side walls and the side walls and moving a transport mechanism among various stations on a guiding ...  
JP2698148B2  
JPH1011800A
To provide an optical disk with which the sure suppression of the swelling out of an excess adhesive is possible, the suppression of the deformation accompanying the heat at the time of photosetting is possible, and the possibility of im...  
JP2693585B2  
JP2672170B2
A roll-stamper for forming substrates of an information-recording medium includes at least one stamper being fastened along a peripheral face of a mirror roller, carrying on a surface thereof patterns each corresponding to a preformat fo...  
JP2670865B2  
JP2546013Y2  
JP2644877B2  
JP2642158B2
A mold for forming an optical disk base provided with a movable specuiar plate (1), a stationary specular plate (2), an annular stamper (12) having inner and outer peripheral edges. The reverse surface of the stamper is in contact with o...  
JP2640535B2  
JPH09180251A
To assure a sufficient printing display part without flawing even being stacked, by transferring the information patterns inscribed on a stamper surface, cutting unnecessary materials to be molded, forming stack ribs on one surface and s...  
JPH09174589A
To prevent the abnormality of birefringence due to local support and deformation etc., of a substrate for an optical disk in annealing by implementing annealing in which the inner and outer peripheral parts of the substrate are covered a...  
JP2622880B2  
JP2622871B2  
JP2622879B2  
JPH09167385A
To suppress the deformation of a stamper of a 2P molding device and the occurrence of foreign matter. This device transfers the patterns of a stamper surface to a transparent substrate by bringing a transparent substrate and the stamper ...  
JPH09155986A
To improve the mechanical properties of a laminated disc. A disc substrate D capable of storing different types of information at the same time is molded by packing a molten resin by injection into paired cavities formed when molding die...  
JP2612622B2  
JPH09134545A
To provide a high density optical disc on which digital information is optically recorded in a plurality of reflective layers and also provide a method of mass-production of an optical disc. Each thickness of a plurality of layers of an ...  
JP2607961B2  
JPH09115191A
To obtain an optical disk of a multilayered structure having excellent accuracy and productivity. A substrate 4 and a stamper 21 are superposed on each other interposing a radiation-curing resin 22 between them and, thereafter, the subst...  
JPH09109276A
To provide a method for manufacturing a high-quality stamper at a high yield by automated steps. This method for manufacturing a stamper for an optical disc consists of a photosensitive layer forming step of forming a photosensitive laye...  
JPH0991769A
To obtain a metal mold capable of absorbing the dimensional tolerance for production of a stamper for molding an optical disk having a good double refractive index distribution by specifying the range of the total volume of the clearance...  
JPH0973670A
To lessen the formation of the flashes of a UV curing resin protruding from the outer periphery of a rotary stamper by forming the outside diameter of a substrate and the outside diameter of the rotary stamper nearly equal to each other....  
JPH0973671A
To easily and rapidly form a spacer layer made uniform over the entire part and to improve productivity by rotating both of a substrate and a rotary stamper while crushing a UV curing resin by bringing the substrate and the rotary stampe...  
JPH0973672A
To make it possible to improve the accuracy of a spacer layer by supplying a UV curing resin between a rotary stamper and a first reflection layer and rotating a substrate and the rotary stamper at the time of crushing this resin between...  
JPH0973669A
To make it possible to form a spacer layer having excellent productivity by supplying a UV curing resin between a rotary stamper arranged to face the first reflection surface on a substrate and a first reflection layer and rotating the s...  
JPH0919952A
To prevent the defective peeling and transfer at demolding when an optical disk substrate is molded by an injection-compression molding method. A movable mold 2 is moved toward a fixed mold 1, after a cavity, which was formed by closing ...  
JPH0922545A
To obtain a method for manufacturing a substrate for an optical recording medium which is small in optical anisotropy and does not generate streaky defects. A fused resin 13, heated and fused via an extruding machine 11 from a die 12, is...  
JP2571968B2  
JP2570402B2
A novel optodynamic method and apparatus for the manufacture of an optical record medium of the type having a multiplicity of pits or like optically detectable marks representative of digitized information to be reproduced wherein a stam...  

Matches 301 - 350 out of 1,205