| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Photoreactive surface processing | US697018 | 1996-08-16 | US5669979A | 1997-09-23 | David J. Elliott; Richard F. Hollman; Francis M. Yans; Daniel K. Singer |
| A method of cleaning a substrate surface, the cleaning being done photoreactively without damaging the surface. A laser beam of UV radiation is delivered at an acute angle to the surface of the substrate, the beam striking the surface at a long and narrow reaction region. The beam and the substrate are moved relative to one another to cause the beam to sweep the surface. While the beam is sweeping the surface, a flow of a reactant gas is provided at the reaction region so that the gas is excited by the UV laser beam. The acute angle of the beam is of a value such that foreign material is removed without essentially damaging the surface of the substrate or leaving a residue that would inhibit further processing of the substrate surface. | ||||||
| 162 | Master for the duplication of sound recordings and process for its production | US617505 | 1996-03-15 | US5667658A | 1997-09-16 | Hermann Koop; Wolf-Eckhart Fritsche; Bernd Hensel |
| A plate made of silicate glass (glass master) (3) is provided with a pressing surface (surface coat) carrying the sound recording in the form of raised contours formed from a photoresist (5) with a layer of primer (adhesion promotor) (4) to hold the photoresist layer (5) to the glass plate (3). A first metal layer (6) is deposited on the photoresist (5) from a sputter target which consists of a NiV alloy; and a protective layer (7) of nickel is electrolytically deposited on the first layer. The metal master (8) consisting of first layer (6) and protective layer (7) is pulled from the photoresist layer (5). | ||||||
| 163 | Apparatus for testing matrixes | US402516 | 1995-03-10 | US5579113A | 1996-11-26 | Gerhard Papst; Klaus Schiffer |
| Apparatus for testing matrixes for manufacturing optical storage media, with a holding device for the matrix displaceable in a rotary manner and an opto-electronic sensing system for reading the data stored on the matrix, where between the matrix (3) and the sensing system (4) a cover (6) configured as a rigid, transparent plate moved together with the holding device (2) and the matrix (3) is provided. | ||||||
| 164 | Process for producing substrate sheet for information recording mediums | US217806 | 1994-03-28 | US5516469A | 1996-05-14 | Tsuyoshi Santoh; Hiroyuki Sugata; Masataka Yashima; Hirofumi Kamitakahara; Hitoshi Yoshino; Osamu Kanome; Tetsuya Sato; Hisanori Hayashi |
| The present invention provides a process using a roll stamper which molds a substrate sheet for information recording mediums by continuously transferring preformat patterns on a resin sheet. The roll stamper has the feature that the preformat pattern on the roll stamper has a value of b/a of greater than 1 when the length of the preformat pattern in the direction parallel to the direction in which the resin sheet is transported is defined as a and the length in the direction perpendicular thereto as b. | ||||||
| 165 | Process for manufacturing optical data storage disk stamper | US281971 | 1994-07-29 | US5503963A | 1996-04-02 | Thomas G. Bifano |
| A process for manufacturing an optical data storage disk stamper includes the steps of providing a chemically vapor-deposited, silicon carbide substrate having a toughness of about 4.5 MPa.sqroot. m, a roughness of about 1 nm, and a flatness of about 6 .mu.m and depositing a negative photoresist on a surface of the substrate. The substrate has a diameter greater than about 120 mm and a thickness greater than about one mm. The negative photoresist then is exposed with a laser to form a negative, data pattern in the photoresist. The photoresist is developed, and the ceramic substrate is ion machined to form the data pattern, in the substrate, such that a spiral track of ridges and lands is formed wherein each ridge has a height of about in a range of 20 to 200 nm. After the data pattern has been ion machined into the substrate, the developed photoresist is stripped from the substrate. | ||||||
| 166 | Direct to stamper/mother optical disk mastering | US282695 | 1994-07-29 | US5494782A | 1996-02-27 | Glenn J. Maenza; Edward W. Morton |
| A method and apparatus for creating an optical disk mother or stamper wherein the number of processing steps is greatly reduced from the prior art methods. In particular, the present invention involves directly forming a mother or stamper by direct laser ablation of a conductive metal substrate. More specifically, a stream of coded digital information (for example, representing the content of an encyclopedia in the case of CD ROM or a classical music collection in the case of CD audio) is converted into a corresponding plurality of pits and lands in the conductive metal substrate by electronically switching the beam of a first laser on and off via an electro or acusto-optic modulator (EOM/AOM) in response to the digital information. As a result, selective portions of the conductive substrate are either ablated (in the case where the laser is on) thereby directly creating the pits, or the substrate is left unaltered (in the case where the laser is off) thereby creating lands. These pits and lands correspond to the digital information and can be read to reproduce the same. The ablated substrate can then be used as a mother. Advantageously, no coating need first be applied to the surface of the substrate before ablation. | ||||||
| 167 | Information recording apparatus having magnetic shield means | US132958 | 1993-10-07 | US5446722A | 1995-08-29 | Yoshiaki Kojima; Yasumitsu Wada; Masahiro Katsumura |
| An information recording apparatus including a device for driving an optical-disk's master disk, an electron lens barrel for having an electron beam irradiate a recording surface of a disk, a translational device for producing, between the disk and the electron lens barrel, a relative movement in a direction parallel to the recording surface and a container for enclosing the elements of the apparatus adapted to support a vacuum atmosphere. The driving device includes a turn table 4, a spindle 14a for supporting the turn table, a motor 14 for driving the spindle, and a magnetic shield for preventing magnetic fields of the motor from leaking outward. The motor is enclosed in the shield to prevent its magnetic fields from affecting the electron beam, which makes it possible to record information with high accuracy. The use of the motor as a drive source realizes easier and more responsive control of the turn table than that in the prior art. | ||||||
| 168 | Optically readable record carrier for recording information, method and apparatus for manufacturing such, apparatus for recording and reading information on a such a record carrier | US99770 | 1993-07-29 | US5339301A | 1994-08-16 | Wilhelmus P. M. Raaymakers; Franciscus L. J. M. Kuijpers; Aartje W. Veenis; Johannes H. T. Pasman; Hendricus A. M. Mulder |
| A record carrier on which information may be optically recorded and/or read, having a disc-shaped substrate with a spiral or concentric pattern of preformed tracks thereon and a radiation-sensitive layer extending over such track pattern. The tracks are in the form of ridges of substantially constant width and having a periodic radial wobble of a substantially constant mean frequency, which frequency is modulated by a position-information signal identifying the relative positions of the tracks in the track pattern. Apparatus for forming such a track pattern includes means for modulating the radial track wobble in accordance with the position-information signal. Apparatus for reading an information signal recorded on such a record carrier includes an FM demodulator for recovering the position-information signal from variations in the reflected scanning beam produced by the track modulation, and which also recovers from such variations a clock signal corresponding to the mean frequency of such modulation and which is used to control the scanning velocity. Apparatus for recording an information signal on such a record carrier includes an FM demodulator for recovering the position-information signal from variations in the radiation reflected from the tracks during recording. | ||||||
| 169 | Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure | US410691 | 1989-09-21 | US4959822A | 1990-09-25 | Johannes H. T. Pasman; Nicolaas C. J. A. Van Hijningen |
| A record carrier body is disclosed which is, provided with sector addresses and servo-track portions. The maximum width of the servo-track portions is at least 60% of the track period, in a direction transverse to the track direction, and is at least of the order of twice the maximum width of the sector-address areas. This makes it possible to obtain an improved tracking signal in addition to a satisfactory address signal. An improved information signal can be obtained by recording the information in the lands between the servo tracks. An apparatus is disclosed for recording sector addresses and servo track portions on the record carrier body. | ||||||
| 170 | Two-layer coating method | US104919 | 1987-10-06 | US4921729A | 1990-05-01 | Nobuyoshi Kaneko; Yasuhito Naruse |
| A multi-layer coating method in which a first layer is first applied to a moving web and is allowed to partially dry before a second layer is applied as a freely falling coating composition film. | ||||||
| 171 | Record-carrier body provided with a relief structure of optically detectable servo-track portions and sector addresses and apparatus for forming said structure | US735005 | 1985-05-17 | US4893298A | 1990-01-09 | Johannes H. T. Pasman; Nicolaas C. J. A. Van Hijningen |
| An optical record carrier body having a planar substrate with elongated generally parallel servo tracks thereon separated by lands extending there-between, the lands having a flat surface coplanar with the substrate surface and a recording layer thereon on which information can be recorded by a beam of radiation. Sector addresses are provided between successive segments of the lands, each sector address having optically detectable areas. The maximum transverse width of each servo track is at least 60% of the track period and at least twice the maximum transverse width of the sector address areas. Apparatus is disclosed for recording the servo tracks and sector addresses on a substrate, as well as apparatus for recording information on the successive segments of the lands between the sector addresses. | ||||||
| 172 | Method of manfacturing a mould and providing it with a backing and mould manufactured according to the invention | US223466 | 1988-07-21 | US4861437A | 1989-08-29 | Hermann Koop; Claudia Pechtheiden-Meier |
| In a method of manufacturing a mould and providing it with a backing, the mould is derived from a parent information carrier by an electroforming process, after which electroforming process and prior to its separation from the parent information carrier the mould is provided with a backing. In order to reduce the cycle times and to improve the mechanical stability, the backing is formed by a UV-curable lacquer which is applied in liquid form and is distributed over the back of the mould, which is subsequently cured by exposure to ultraviolet light. | ||||||
| 173 | Flow processing system | US94994 | 1987-09-10 | US4850791A | 1989-07-25 | 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. | ||||||
| 174 | Video record disc | US812158 | 1977-07-01 | US4819223A | 1989-04-04 | 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. | ||||||
| 175 | Information recording disk | US789837 | 1985-10-21 | US4716063A | 1987-12-29 | Haruo Uehara; Hiroshi Omata |
| An information recording disk has a transparent support substrate and a transfer layer formed thereon using a stamper. The transfer layer comprises a precursor having as major components a cycloacetal compound having at least two polymerizable unsaturated groups, a compound having at least two mercapto groups, and an acrylic ester and/or methacrylic ester. | ||||||
| 176 | Process of producing information recording disc | US794409 | 1985-11-04 | US4663267A | 1987-05-05 | Fumio Matsui; Manabu Sugano |
| An information recording disc comprising a generally circular substrate having a polished major surface, a light-reflective coating formed on the polished major surface of the substrate, and a light-absorptive coating formed on the surface of the light-reflective coating and formed with information tracks each consisting of a succession of spaced pits in the light-absorptive coating, the light-absorptive coating being composed of a mixture of cellulose nitrate and a dye sensitizer exhibiting a noticeable light absorptivity in response to light with a predetermined wavelength, the cellulose nitrate being prepared from a starting cellulose containing at least about 97% of alpha-cellulose. If desired, the light-reflective coating may be dispensed with so that the light-absorptive information recording coating is formed directly on the polished surface of the substrate. | ||||||
| 177 | Information recording disc having light absorbing cellulose nitrate coating | US425397 | 1982-09-28 | US4582776A | 1986-04-15 | Fumio Matsui; Manabu Sugano |
| An information recording disc comprising a generally circular substrate having a polished major surface, a light-reflective coating formed on the polished major surface of the substrate, and a light-absorptive coating formed on the surface of the light-reflective coating and formed with information tracks each consisting of a succession of spaced pits in the light-absorptive coating, the light-absorptive coating being composed of a mixture of cellulose nitrate and a dye sensitizer exhibiting a noticeable light absorptivity in response to light with a predetermined wavelength, the cellulose nitrate being prepared from a starting cellulose containing at least about 97% of alpha-cellulose. If desired, the light-reflective coating may be dispensed with so that the light-absorptive information recording coating is formed directly on the polished surface of the substrate. | ||||||
| 178 | Method and apparatus for electroforming a stamper for producing a high-density information recording carrier | US628369 | 1984-07-06 | US4539079A | 1985-09-03 | Norio Okabayashi |
| Method and apparatus for producing a desired thickness distribution on a stamping plate in a rotary electroforming process. The stamping plate is used to produce a high density information recording carrier. A shielding plate is detachably mounted adjacent a fixed anode in an electrochemical bath. Another shielding plate is detachably mounted adjacent the rotary cathode. During electroforming either or both shielding plates are put into position or removed at appropriate times to produce the desired thickness distribution. | ||||||
| 179 | Apparatus for making a stamping master for video disk replication | US603618 | 1984-04-25 | US4537670A | 1985-08-27 | David A. Strand |
| There is disclosed a new and improved apparatus 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. | ||||||
| 180 | Disc record with tapered groove | US412185 | 1982-08-27 | US4525751A | 1985-06-25 | Edward J. Freeman; John E. Economou; John G. Pecorari; Gunter John; Jerome B. Halter; Jack E. James; Richard M. Castle; Richard C. Palmer |
| A video disc record of the constant angular velocity type (CAV) includes a spiral groove of constant pitch formed in a band on a surface thereof. The groove has a substantially constant nominal vertical dimension and vertical displacements which taper monotonically from an outer radius of the band to an inner radius. One component of the vertical displacement of the groove conveys an FM carrier wave of constant amplitude and relatively high frequency representative of picture information. A second component of the vertical displacement conveys one or more lower frequency FM carrier waves representative of sound information. The amplitude of the second component varies monotonically as a function of the groove radius within the record band to provide a disc having an improved audio FM carrier-to-noise ratio with no substantial perceptible increase in undesirable sound beat effects in images displayed when the disc is played. A mastering system exemplary of the method of forming the grooved disc includes variable gain units in an audio FM carrier wave processing path of the system. | ||||||
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