| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Process for producing molding stamper for data recording medium substrate | US815610 | 1992-01-07 | US5147763A | 1992-09-15 | Hirofumi Kamitakahara |
| A process for producing a stamper having a roller form is disclosed. The process includes the steps of: forming a layer of a photoresist on a stamper substrate having a roller form; causing a flexible exposure mask having a predetermined pattern to substantially contact the roller stamper substrate and exposing the roller stamper substrate to light by the medium of the exposure mask; subjecting the photoresist layer to development thereby to form on the stamper substrate a pattern of the photoresist corresponding to the pattern of the exposure mask; and forming on the stamper substrate an unevenness pattern corresponding to the pattern of the photoresist. | ||||||
| 42 | Method and device for removing a flexible product from a carrier plate | US626584 | 1990-12-07 | US5133824A | 1992-07-28 | Petrus A. A. Huberts; Henricus H. B. Wouters |
| A flexible product, more particularly an information-carrying disc, is removed from a carrier plate, more particularly a mold, by creating a partial vacuum at the side of the product facing away from the carrier plate. While the product is being displaced in a direction facing away from the carrier plate under the influence of the partial vacuum, the product is guided in such a way that it is displaced over the greatest distance at two opposite ends and the displacement of the parts of the product situated between these ends decreases gradually towards the center of the product. | ||||||
| 43 | Information recording medium, production process and molding die for substrate therefor | US544652 | 1990-06-27 | US5073101A | 1991-12-17 | Hiroyuki Imataki; Mizuho Hiraoka; Tomoyuki Tamura; Tetsuya Satoh |
| A molding die for an information recording medium substrate having a prescribed unevenness pattern comprising a track portion and an information pit portion which has a planar shape of a polygon wherein at least one diagonal is substantially parallel to the track portion. Such molding die provides an information recording medium substrate without lack in the periphery of a pre-format. | ||||||
| 44 | Flow processing system | US416001 | 1989-10-02 | US5002455A | 1991-03-26 | Kazumi Kuriyama; Yutaka Takasu; Shigeru Kono; Chiharu Koshio; Kazuhiko Nagata |
| A flow processing system for processing disc-shaped articles such as discs to be used to produce video or audio disc masters, whereby a plurality of processing units for performing respectively different processing operations are combined into a single system in which each disc is moved only horizontally and in a continuously rotating condition, both during processing and while being moved between the processing units. In addition, the supporting structure of the processing units is implemented such as to produce no disturbances in a horizontally directed dust-excluding flow of air, to ensure maximum prevention of adherence of dust particles to the disc surfaces. | ||||||
| 45 | Information recording medium, production process and molding die for substrate therefor | US301145 | 1989-01-25 | US4956214A | 1990-09-11 | Hiroyuki Imataki; Mizuho Hiraoka; Tomoyuki Tamura; Tetsuya Satoh |
| There is provided a molding die for an information recording medium substrate having a prescribed unevenness pattern comprising a track portion and an information pit portion which has a planar shape of a polygon wherein at least one diagonal is substantially parallel to the track portion. Such molding die provides an information recording medium substrate without lack in the periphery of a pre-format. | ||||||
| 46 | Apparatus for pre-forming servo-track portions and sector addresses having the same predetermined width | US257360 | 1988-10-12 | US4949330A | 1990-08-14 | Johannes H. T. Pasman; Nicolaas C. J. A. van Hijningen |
| Apparatus is described for pre-forming a relief structure of optically detectable servo-track portions and sector addresses on the recording layer of a record-carrier body, the maximum transverse width of the servo-track portions and sector addresses being the same and exceeding approximately 1/2 the track period P.sub.r but being less than approximately 3/4 P.sub.r. This enables the servo-track portions to be tracked in an optimum manner by a radiation beam and the sector-addresses and the information recorded by the user produce a read-out signal of high amplitude. | ||||||
| 47 | Disc-shaped member | US320534 | 1989-03-08 | US4893297A | 1990-01-09 | David P. Gregg |
| A transparent record disc is provided which may appropriately have video signals optically recorded thereon, the record is composed of a lamination, for example, of pliant transparent plastic on a base of hard transparent plastic. The base provides strength for the record and the pliant plastic permits the video recording to be impressed into the record by simple embossing means, rather than by stamping or molding by which the surface of the record is actually raised above its melting point and caused to flow. An improved process for forming the video recordings on the disc record is also provided. | ||||||
| 48 | Stamper for replicating high-density data recording disks | US746097 | 1985-06-18 | US4723903A | 1988-02-09 | Shinji Okazaki; Masaru Ito |
| Herein disclosed are a stamper for replicating a high-density data recording disk, wherein there is formed on a substrate a multi-layered metal film, in which a plurality of metals of different kinds are laminated and which has a thickness equal to the depth of a pit, by an etching technique having a selectivity for the kinds of metals and a process for producing that stamper. Since one or more pits having different depths are formed very precisely, the recording density is increased, and the quality of a readout data signal is improved while dispensing with the plating step. As a result, there can be attained an effect that the productivity and economy can be improved. | ||||||
| 49 | Process for recording information by irradiation of, an deposition on, a substrate | US795145 | 1985-11-05 | US4700198A | 1987-10-13 | Ryuji Shirahata; Tatsuji Kitamoto; Yoshihiro Arai |
| A process for recording an information on a surface of a substrate, which includes steps of irradiating the substrate surface with radiation modulated according to the information to be recorded and subjecting the surface of the substrate to a deposition treatment to form deposited areas and non-deposited areas in correspondence with the non-irradiated areas and the irradiated areas, respectively. By this process, a recording density of from 10.sup.8 to 10.sup.9 bit/mm.sup.2 can be obtained. | ||||||
| 50 | Method and device for reading digital data in an optical mass memory system using electrophotography | US696027 | 1985-01-29 | US4628367A | 1986-12-09 | Manfred Kuehnle; Lysle D. Cahill; John C. Butler; Lawrence J. Bassuk |
| An electrostatic image of binary data representing elements if formed on a particular electrophotographic member disclosed and claimed in U.S. Pat. No. 4,025,339. The electrostatic image is toned and the toned image is transferred to a storage medium. The storage medium is in the form of an extended length of dual-layer transparent synthetic resin material. One of the layers has a softening range of temperature less than the substrate. At the transfer, the one layer is heated and the toned image is pressed into the one layer. The storage medium carrying the toned image then is wound up on a storage or take-up spool while fresh medium is fed from a supply spool. The two spools are carried by a housing and the housing, spools and medium form an optical mass memory cassette. Reading of the data occurs by deflecting rays of light across the medium and the light that is transmitted through and blocked by the medium is sensed in bar sensors, one for each ray. The rays are deflected across the medium in a pattern similar to the pattern used for imaging the electrophotographic member. The electrical signals from the sensors are used to produce binary data representing the data stored on the medium. | ||||||
| 51 | Method and apparatus for making a stamping master for video disk replication | US603626 | 1984-04-25 | US4615969A | 1986-10-07 | David A. Strand |
| There is disclosed a new and improved method for making a stamping master for video disk replication wherein a film of material which is reversibly convertible between two stable states, one having a high electrical conductivity and the other having a low electrical conductivity, is deposited on a substrate while in one of the states. The material is then imaged with information in coded form by converting selected areas of the film to the other state in a predetermined pattern corresponding to the coded information. The conversion can be accomplished by light, electromagnetic energy or heat.At this stage, an intermediate subassembly, composed of the imaged film on the substrate, is formed which can be read for accuracy by detecting the state of the selectively converted areas with respect to the rest of the film. Corrections can be made by converting the state of selected areas of the film as required.A metal, such as nickel, is then electroplated onto the areas of the film which are in the high conductivity state. The plating is continued until the nickel spans the areas of the film on which it did not directly plate. In this way a continuous backing layer which is integral with the plated nickel is formed.The nickel is then separated from the imaged material to provide a first stamping master which is used to form a second stamping master of opposite polarity to the first, preferably by a similar plating onto the first master. The second stamping master is used directly for video disk replication. | ||||||
| 52 | Process for making a video record disc | US672659 | 1984-11-19 | US4615753A | 1986-10-07 | David P. Gregg |
| A transparent record disc is provided which may appropriately have video signals optically recorded thereon, the record is composed of a lamination, for example, of pliant transparent plastic on a base of hard transparent plastic. The base provides strength for the record and the pliant plastic permits the video recording to be impressed into the record by simple embossing means, rather than by stamping or molding by which the surface of the record is actually raised above its melting point and caused to flow. An improved process for forming the video recordings on the disc record is also provided. | ||||||
| 53 | Sandwich-type capacitive electronic discs | US584599 | 1984-02-29 | US4575838A | 1986-03-11 | Wolfgang H. Meyer; Hanspeter Schweizer |
| At least one layer of a conductive organic polymer, formed by electropolymerization on the anode in a two electrode cell, is bonded to a plastic substrate by compression with sufficient heat and pressure to cause it to bond to the substrate and release from the anode. Improved sandwich-type capacitive electronic discs having an information pattern in ultra thin outer conductive layers which are homogeneous and which contain no conductive particles are formed by this process by providing as the anode a mastering disc containing an information pattern which is the negative of the desired information pattern. | ||||||
| 54 | Optical mass memory system using electrophotography | US489309 | 1983-04-28 | US4515879A | 1985-05-07 | Manfred R. Kuehnle; Lysle D. Cahill; John C. Butler; Lawrence J. Bassuk |
| An electrostatic image of binary data representing elements is formed on a particular electrophotographic member disclosed and claimed in U.S. Pat. No. 4,025,339. The electrostatic image is toned and the toned image is transferred to a storage medium. The storage medium is in the form of an extended length of dual-layer transparent synthetic resin material. One of the layers has a softening range of temperature less than the substrate. At the transfer, the one layer is heated and the toned image is pressed into the one layer. The storage medium carrying the toned image then is wound up on a storage or take-up spool while fresh medium is fed from a supply spool. The two spools are carried by a housing and the housing, spools and medium form an optical mass memory cassette. Reading of the data occurs by deflecting rays of light across the medium and the light that is transmitted through and blocked by the medium is sensed in bar sensors, one for each ray. The rays are deflected across the medium in a pattern similar to the pattern used for imaging the electrophotographic member. The electrical signals from the sensors are used to produce binary data representing the data stored on the medium.The data stored in the optical memory cassette is unaffected by magnetic and electric fields and light energy, a tremendous quantity of data can be stored on a relatively small length of storage medium, and the storage medium is inexpensive so that it may be discarded when the data is obsolete. | ||||||
| 55 | Device for producing an information recording disk | US299580 | 1981-09-04 | US4472124A | 1984-09-18 | Toshiaki Kashihara; Keisuke Ito; Yoshihiro Okino |
| A device for producing information recording disks comprises a stamper mount for placing a stamper thereon, a stamper-fixing shaft for fixing the stamper, and a pressing plate for pressing a backing plate toward the stamper after a liquid resin is injected in the space between the backing plate and the stamper. Injection is effected via a passage made at the center of the stamper mount, and the injected resin is stretched outwardly radially by pressing the backing plate. An ultraviolet ray is irradiated to the stretched resin through the backing plate to harden the resin. An injection valve movably received in the stamper-fixing shaft may be used so that uninjected resin is prevented from being hardened. The injection valve may have a center projection as well as a flange portion at its top so that machining for making a center hole of the disk is unnecessary. The periphery of the flange portion may be wetted by the resin before the backing plate is placed on the flange portion. The stretching speed of the resin is controlled so that air bubbles are prevented from being taken into the resin. The stamper may be attracted by magnetic forces to the stamper mount. A stamper having a fixing ring at its center may be used so that eccentricity is avoided. | ||||||
| 56 | Optically readable information disc and method of manufacturing same | US307131 | 1981-09-30 | US4446549A | 1984-05-01 | Gerardus J. M. Lippits; Johan G. Kloosterboer; Godefridus Melis |
| An optically readable information disc having a substrate plate which on at least one side comprises an information layer of a lacquer cured by irradiation for example by ultraviolet light, said layer carrying an optically readable information track in which the lacquer is a monocomponent lacquer which, in addition to 0.1-5% by weight of auxiliary substances, comprises only one radiation cross-linkable compound in a quantity by weight from 95-99.9% selected from the group consisting of alkanedioldiacrylates, alkanedioldimethacrylates, alkeneglycoldiacrylates and alkeneglycoldimethacrylates having the acrylate or methacrylate groups in end position, of which the alkane moiety and alkene moiety comprise from 4 to 12 carbon atoms, and in which the cured lacquer apart from the auxiliary substances comprises no or substantially no extractable material. | ||||||
| 57 | Information carrying discs | US446635 | 1982-12-03 | USRE31533E | 1984-03-06 | Terry W. Lewis |
| Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer. | ||||||
| 58 | Process for making information carrying discs | US117467 | 1980-02-01 | US4374077A | 1983-02-15 | Donald J. Kerfeld |
| Imperfections in the surface of information carrying discs, such as video discs, are avoided by an improved process of manufacture. A bead of photopolymerizable mass is moved between two surfaces, one of which is a patterned surface and the other is a surface to which the photopolymerizable mass will bond upon polymerizing. By moving the liquid mass across the patterned surface, air within the pattern is removed by the leading edge of the bead, reducing imperfections. | ||||||
| 59 | Metallized information carrying discs | US189000 | 1980-09-22 | US4363844A | 1982-12-14 | Terry W. Lewis; Roger J. Anderson; Donald J. Kerfeld |
| A coded information structure capable of being decoded electronically comprising a base and a first layer of an electrically conductive or electromagneted radiation reflective layer adhered to said base wherein said layer having coded information in the form of areas of said layer having been vertically displaced and having ruptures or necking or the side of the depression and an insulating or transparent protective layer over said first layer. | ||||||
| 60 | Replicable optical recording medium | US85547 | 1979-10-17 | US4285056A | 1981-08-18 | Alan E. Bell |
| An optical recording medium which comprises a light reflective layer, a light transmissive layer and a light absorptive layer, the material comprising the light transmissive layer has a melting, sublimation or decomposition temperature at least 300.degree. C. less than that of the material comprising the absorptive layer. Information is recorded as openings in both the light transmissive and absorptive layers or as bubbles in the absorptive layer. These storage mechanisms produce topographical features which are suitable for replication, thus allowing direct replication of the recorded information. | ||||||
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