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JPS59135593U |
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JPS59156720A |
PURPOSE: To form precisely the inner circle of the stamper for a photo disk, using a press with small capacity, by means of utilizing a punch in which its edge is formed into the circular shape in a two dimensional plane, while using the...
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JPS59150729A |
PURPOSE: To perform all processing steps while holding a disc and avoid damage thereof by a construction wherein a disc chuck mechanism used in manufacture of a magnetic disc is formed of two parts having the substantially identical oute...
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JPS59125731U |
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JPS5934783B2 |
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JPS59146821A |
A method and a device for manufacturing an information carrier of synthetic material having a laminated structure, in which a transparent carrier (2) is provided away from the mould with a resin layer (10-12) and is then brought to a pos...
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JPS59145120A |
PURPOSE: To prepare a foamless disk by a method wherein a casting plate 9 is arranged on a stamper 6 at a specified distance and liquid resin 13 is injected between the casting plate 9 and stamper 6 along a shaft body 8 revolving the sha...
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JPS59145121A |
PURPOSE: To prepare a foamless disk by a method wherein resin is injected between a stamper 6 and a casting plate 8 having on one side a circular projection 10 encircling an opening 9 equipped in the center and producing foams are accumu...
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JPS59145119A |
PURPOSE: To prepare foamless disk in a disk preparing device for charging liquid resin between a stamper 6 and a casting plate 23 by equipping a resin supply member 9 having a resin reservoir 20 and a charging hole 26 at the opening of t...
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JPS59143623A |
(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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JPS59142114A |
PURPOSE: To make suitable laminate coating possible, by laminating a laminate material on a recording member, and heating the laminate material to be fused to the recording member by signals from a control circuit, and detecting misalign...
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JPS59142098A |
(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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JPS59142097A |
(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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JPS59120116U |
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JPS59138248A |
PURPOSE: A record disk, obtained by incorporating a specific amount of a polyolefin resin with a vinyl chloride based resin, adding an organotin compound to the resultant mixture, and molding the resultant vinyl chloride based resin comp...
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JPS59135133A |
A novel coating (34) is provided on a member (24) which may be part of a mold (24). Plastic articles (10) which are made by injection molding within such a mold (24) can have a very smooth surface by replication of the surface coating (3...
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JPS59133019A |
PURPOSE: To prevent the production of pin holes and breakage by changing the posture of a preformed substance and mounting the substance on a stamper when a conductive disc type recording medium is prepared by subjecting the substance to...
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JPS59123635A |
PURPOSE: To produce a high-performance electrostatic capacity conversion type information recording disc that is excellent in the reproduction property after long period stationally standing, by irradiating an information record plate of...
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JPS5999720U |
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JPS59115813A |
PURPOSE: To obtain a flexible replica with low cost and high accuracy in short working treatment-time by separating an original disk from resin layer, after radioactive rays are made to irradiate on the radioactive ray-curing resin layer...
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JPS59115814A |
PURPOSE: To obtain the excellent recording disk with less birefringence and high bit density made of plastic by reducing the outer diameter of a forming body when/after said forming body is formed by presurizing with the stamper having, ...
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JPS59114032A |
PURPOSE: To facilitate the removal of foreign matters adhered on the surface of a stamping disc by a method wherein an adhesive layer with a bond strength, which is stronger to resinous substances than to metals, is formed on the surface...
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JPS59114031A |
PURPOSE: To manufacture a flat stamping die by a method wherein a matrix consisting in optically recording information on a photoresist material, which is coated in a base, is at first coated with foundation metal and then coated with ph...
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JPS59111820A |
PURPOSE: To obtain an optical information carrier disc having a high-quality track groove by a method in which a mask to regulate the amount of permeation of ultraviolet rays is provided to a pressure glass plate, the hardening condition...
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JPS59106937A |
PURPOSE: To prevent air bubbles from mixing in molded resin while preventing the adhesion of foreign matters to the resin surface, in a forming molding method using radiation curable resin, by continuously performing a process reaching f...
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JPS5998825A |
PURPOSE: To improve the accuracy with a quick filling thoroughly to tips by injecting a melted resin rotating it on the center of a thin-disc-shaped cavity provided in a telescopic element. CONSTITUTION: A thin-disc-shaped cavity 6 is pr...
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JPS5998330A |
PURPOSE: To increase the adhesive strength of the plastic substrate of an information recording carrier to a cured lacquer film having signals for information and guide grooves by using a resin contg. a component which bonds chemically t...
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JPS5996545A |
PURPOSE: To prolong the life by using an org. solvent having power of partially dissolving the surface of a plastic substrate as one component of radiation-curing lacquer to maintain the adhesive strength of a layer of the lacquer having...
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JPS5995119A |
PURPOSE: To suppress the swelling-out of disc surface and consequently reduce the deterioration of electric characteristics due to the swelling-out by a method wherein disc just after compression-molded is left to stand in a specified at...
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JPS5993707A |
PURPOSE: To prepare a disk plate having excellent transparency, moisture warpage resistance, heat deformation resistance and formability, by using a copolymer resin composed of specific amounts of methyl methacrylate, alkyl acrylate, mal...
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JPS5991079A |
PURPOSE: To prevent a formed image from being delaminated, and enable to produce a manuscript picture suitable for an overhead projector, by conducting laminate coating on an image-forming surface on a recording member consisting of a tr...
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JPS5991078A |
PURPOSE: To enable to automatate laminate coating constantly with an appropriate size, by conducting laminate coating on a recording surface by a laminate member corresponding in size to a recording member. CONSTITUTION: Supplying of an ...
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JPS5990245A |
PURPOSE: To prevent corrosion due to contact with molten resin at high temp. or oxidation etc. during storage in the air to obtain a long-lived stamper by coating the information signal face of an Ni stamper having information signals fo...
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JPS5982603A |
PURPOSE: To obtain a record disc which has abrasion resistance, is hardly damaged and has high sound quality by joining record side plates made of a metal having a chrome plating layer with a base to produce the record disc. CONSTITUTION...
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JPS5913065Y2 |
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JPS5916333B2 |
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JPS5916332B2 |
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JPS5962116A |
PURPOSE: To obtain an information recording disk which is excellent in wear resistance and information reproduction at a high productivity and a low cost by such an arrangement wherein a sheet of resin is placed between 2 sheets of cardb...
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JPS5960702A |
PURPOSE: To obtain a stamper which excels in transcription performance by producing a master disk without using photoresist and applying an Au film in lien of an Ag film to the master disk. CONSTITUTION: A metallic target of a low fusing...
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JPS5950047U |
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JPS5956238A |
PURPOSE: To obtain a stamper superior in transferability, replica attainability, wear resistance, and corrosion resistance, by forming a conductive film with the first thin film layer provided with adhesive strength and corrosion resista...
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JPS5949941A |
PURPOSE: To prevent air bubbles from entering into resin to be molded and reduce the amount of foreign matters adhered to the surface of resin by such an arrangement wherein under decompressed atmosphere, information signals on the surfa...
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JPS5948126A |
PURPOSE: To enable to obtain a large number of discs with few defects such as drop out and the like from a single stamper by a method wherein transfer is performed in inert gas atmosphere at the manufacture of discs by employing ultravio...
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JPS5942934A |
PURPOSE: To equalize the distribution of temperature of a stamper-attached section by a method in which an enclosed space where a refrigerant is confined between the stamper-attached face and the heating and cooling section of a press mo...
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JPS5942933A |
PURPOSE: To obtain a recording carrier free of variation in its film thickness by a simplified apparatus having a system in which a radiation-curable lacquer is placed on a transfer mold, a plastic base plate with sealed peripheral ends ...
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JPS5940342A |
PURPOSE: To produce easily with high accuracy an information recording medium, by irradiating selectively the laser light to the surface side of a substrate to obtain a cross sectional form corresponding to the energy distribution of the...
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JPS5938946A |
PURPOSE: To produce with high yield a master disk for information storing medium which contains tracking guides and signal information pits formed with high accuracy, by forming the 1st recessing/projecting part on the surface of a subst...
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JPS5938947A |
PURPOSE: To obtain a master disk for information storing medium with which the signal information bits can be easily and quickly produced with high accuracy and high yield, by forming recessing and projecting parts on the surface of a su...
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JPS5933132U |
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JPS5936341A |
PURPOSE: To form accurately fine grooves on an optical disc substrate or the like in a short time, by using anacrylic polymer degradably by far-ultraviolet rays capable of forming required grooves by selective irradiation of the far- ult...
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