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JPS58158057A |
PURPOSE: To obtain a stamper which is durable to many-time use while improving its surface hardness, by coating surfaces of a master stamper and a dome stamper with nitrified films of aluminum or chromium. CONSTITUTION: The surfaces of t...
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JPS58158001A |
PURPOSE: To maintain the adhesion between a radiation-curable lacquer layer and a plastic substrate, by contg. a compd. having unsated. bonds that have the power to dissolve said substrate as a component of the radiation-curable lacquer....
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JPS58155550A |
PURPOSE: To make the forming of a stamper easy, by coating duplicatedly photo resists having different sensitivity on a base, exposing the resists in different amount of light, and sensing light is accordance with the pattern so as to fo...
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JPS58151223A |
PURPOSE: To enable to mass-produce readily an optical disk substrate which enables to write arbitrarily and has large mechanical strength and high accuracy, by attaching a stamper to the molding surface of a core in a specified condition...
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JPS58150148A |
PURPOSE: To form a stamper which is excellent in transferring and replicating characteristics of a fine pattern and is highly resistive to abrasion and corrosion, by forming a stamper layer on the surface of a coating layer by a nickel e...
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JPS58140223A |
PURPOSE: To eliminate cleaning while facilitating the removal of a disc substrate and a molding resin from a stamper by removing a resin material with a high speed air flow as extruded from the inner circumference and the outer circumfer...
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JPS58132524A |
A laminated recorded disc of the type having a core material surrounded by a surface layer of a conductive material is made from a preform having a core surrounded by the conductive material. The preform is made in a mold in which the co...
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JPS58130449A |
PURPOSE: To make the transfer accuracy of signal its good and transfer time short and to improve releasing from a stamper and adhesion to a plastic substrate by using radiation-curable polybutadiene as radiation curable lacquer. CONSTITU...
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JPS5835130B2 |
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JPS5835136B2 |
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JPS5833604B2 |
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JPS58118222A |
PURPOSE: To considerably reduce the size of a forming device by such an arrangement wherein a substrate on which ultraviolet ray setting type resin is dripped is caused to rotate at a high speed and a stamper having specific signals is b...
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JPS58110220A |
PURPOSE: To produce a substrate for optical disc excellent in a transferring property, by using a stamper prepared by applying a solution of a phosphate ester containing a fluoroalkyl group on an Ni stamper surface and baking the surface...
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JPS58104724A |
PURPOSE: To reduce the pressed-out amount of ultraviolet curing resin as less as possible during the transfer by weighing the disk base, spraying ultraviolet curing resin thereon and fixing the total weight of the disk base and the ultra...
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JPS58101022A |
PURPOSE: To obtain the titled base plate good in transferring, by applying a polymethylhydrodiene siloxane solution in a specific amount on the surface of a stamper made of Ni, and baking it therey letting the surface have a baked materi...
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JPS5886321U |
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JPS5886319U |
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JPS5889316A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5884730A |
PURPOSE: To obtain a disk record free from strain and deformation after cured by a method wherein an ultraviolet curing resin layer calendered at a high temperature is cooled and cured by irradiation of ultraviolet rays at the ordinary t...
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JPS5882726A |
PURPOSE: To provide an excellent high-density information carrier, by a method wherein an ultrasonic permeable flexible base body is placed on an ultraviolet permeable cone-shaped pressure plate, an ultraviolet curing type resin is dripp...
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JPS5821337B2 |
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JPS5864394A |
An electroplating arrangement having particular use in the manufacture of stamper plates for disc record production comprises a rectangular plating bath, one side being non-vertical with respect to the bath base. A filter screen divides ...
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JPS5862021A |
PURPOSE: To obtain the titled carrier with the strain being prevented, by placing on a substrate an ultraviolet-curing resin having a specified viscosity value in the shape of a semisphere, bringing a stamper into contact with the resin ...
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JPS5855224A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5855223A |
PURPOSE: To obtain a recording disc at a high accuracy with a simple process by a metohd wherein an ultraviolet transmitting type resin is pressed and spread sufficiently between a disc base material and a mold and punched in a given sha...
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JPS5850635A |
PURPOSE: To make the adhesion between a plating film and a metallic film firm by interposing a thin metallic film serving as an adhesive layer between the metallic film formed with information patterns and the plating film. CONSTITUTION:...
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JPS5849221A |
PURPOSE: To obtain the titled substrate useful for audio discs, etc. without smearing it with a releasing agent, by molding a resin by heating under pressure using a molder wherein a stamper is mounted that is coated with a heat resistan...
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JPS5845636A |
PURPOSE: To continuously manufacture optical discs and to improve the production efficiency, by separating a signal processing section of a disc manufacturing base made of a synthetic resin from the base through punch of the like. CONSTI...
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JPS5842435A |
PURPOSE: To obtain the titled carrier that is stable and can be provided at a low cost, by putting a photo-setting resin on a press mold that has contoured signals, placing a transparent pressing flat plate, and irradiating them under pr...
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JPS5838125A |
PURPOSE: To produce an information record carrier whose shape would not be changed with time, by placing an ultraviolet-curing resin, a base, and an ultraviolet-curing resin in turn on a pressure plate, irradiating them with ultraviolet ...
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JPS5835742A |
PURPOSE: To easily obtain a stamper with high quality, by reproducing information of a signal plane of a glass master disc on a signal surface of a stamper with high fidelity, through the immediate transfer of information of the signal s...
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JPS5810763B2 |
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JPS587654B2 |
A novel method is proposed for improving the surface properties or, in particular, for reducing accumulation of static electricity on the surface of a shaped article of a vinyl chloride-based resin. The inventive method comprises first e...
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JPS5822140A |
PURPOSE: To cause strong power to be unnecessary for a center pin in order to obtain long durability life of said pin by following method in which a mold-cavity is formed by lowering a double cylinder like annular body with inner and out...
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JPS5822138A |
PURPOSE: To poduce the disk with a large diameter-hole which has easy and accurate centering for an upper die and a lower die and accordingly less accidental error by carrying out the centering for the core hole of the upper die and that...
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JPS5822137A |
PURPOSE: To keep the outer diameter of a center pin exactly always and to prevent the fracture of the center pin by following method in which the center pin is inserted into the central hole preformed in a cake and the thermal expansion ...
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JPS5822139A |
PURPOSE: To enable the distance between an upper metal die and a lower metal die to widen suficiently and to enable a cake to be arranged at predetermined position by press-forming the cake into a disk between the upper metal die and the...
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JPS5822136A |
PURPOSE: To obtain a small sized device with long durability of a center pin requiring for only small power without leaving residual film in the central portion of a disk by the following method in which a cake is kept in an accurate pos...
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JPS589241A |
PURPOSE: To improve cleaning effect and to perform a metallizing treatment effectively by equipping a pallet with a body to be treated, and then transporting them successively through a preliminarily vacuum chamber, a cleaning chamber, a...
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JPS581653B2 |
A press element for a disc record press which is heated and cooled by the passage of hot and cold fluids is made from materials of different thermal conductivity so that parts of a surface on which a matrix is attached in use which are f...
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JPS57187721U |
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JPS57191805A |
PURPOSE: To obtain an information recording disk whose label part neither deteriorates nor changes incolor in a short time by dehumidifying and supplying the label for the information recording disk to a press machine, and then performin...
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JPS57187211A |
PURPOSE: To obtain a molding apparatus by which the molded product of a disk etc. is obtained with high accuracy efficiently, by shaping first and second channels which become the flow passage of thermal medium into a predetermined patte...
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JPS57183642A |
PURPOSE: To obtain a stable disk with metallic film with high quality and a low cost, by forming a metallic film on a heat-resistant synthetic resin film, coating a heat-sensitive adhesive to the counter surface of the metallic film to o...
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JPS57177325A |
PURPOSE: To attain to reduce the volume of an adsorbing tower and to save energy by a methd wherein a dried stock gas obtained in a dehumidifying process is used as the drying gas of a cooling process and the used gas is supplied to a cu...
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JPS57169324A |
PURPOSE: To obtain the optical disk which prevents generation of a shrink strain, by heat-pressing signals on the surface of said disk by a stamper for a short time after blanking out a disk from a plain sheet molded from synthetic resin...
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JPS57169325A |
PURPOSE: To obtain an information carrier readily and at a low cost, by superimposing a stamper having a plurality of protrusions which prevent a shift at an information recording part and a part except the recording part on a plain shee...
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JPS57164839U |
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JPS57163533A |
PURPOSE: To obtain the titled carrier free from air bubbles and having stable quality in high efficiency by a method wherein an ultraviolet ray curable resin is coated on the surface of a base material molded into an umbrella shape and a...
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JPS57163536A |
PURPOSE: To obtain the titled carrier free from air bubbles and having stable quality in a reduced energy consumption amount by a method wherein a thermoplastic resin is coated on the surface of a base material and air pressure is applie...
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