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| Number | Title | Issue Date |
| 7957252 | Optical disc and method for image forming thereon The present invention provides an optical disc on which a visible image can be formed by irradiation of laser light, which comprises a logo area on which visible information is indicated, a pre-pit signal area, and an image forming area on which a visible image can ... | 06/07/2011 |
| 7852740 | Information recording medium storing system and storing case An information recording medium capable of displaying multiple labels and a storing case for the information recording medium are provided. The multiple labels are displayed by changing the labels to be displayed while selectively selecting information layers in a m... | 12/14/2010 |
| 7280043 | Apparatus for impeding counterfeiting, impeding stealing and managing optical disk stock An apparatus for impeding counterfeiting, impeding stealing and managing optical disk stock is described. The radio frequency identification (RFID) system is applied in an apparatus for impeding counterfeiting, impeding stealing, and managing optical disk stock. The... | 10/09/2007 |
| 7196975 | Magneto-optical disk with protective layer, and optical disk device On a pit information surface (22d) of a read-only optical disk (22), a protective layer (22f) suited for a floating-type or a sliding-type magnetic head (3) used for a magnetic field modulation type magneto-optical disk is f... | 03/27/2007 |
| 7110544 | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an optical di... | 09/19/2006 |
| 7082094 | Optical recording apparatus with drawing capability of visible image on disk face An optical disk apparatus records information by irradiating a laser beam from a pickup onto an optical disk. A scanning section scans the laser beam relative to the optical disk. A recording control section controls the scanning section to effect recording of infor... | 07/25/2006 |
| 6899942 | Optical disk label and method An optical disk of the type rotated by a spindle positioned in a centrally-located hole, and including a disk body including an annular data area, and a centrally-located, integrally-formed annular web positioned radially inward from the annular data area and coveri... | 05/31/2005 |
| 6577588 | Optical recording medium having transparent color ink formed on the reflective layer An optical data storage medium comprises a substrate having thereon concavities and convexities so that diffraction of reflected light is caused; a reflective layer having a high regular reflectance; and a colored region which is provided by applying tran... | 06/10/2003 |
| 6160789 | Optical data storage disc An optical data storage disc having a first component disc formed over one side with a pattern of indentations defining digital data, the indented side of the first component disc being provided with a reflective coating, and a second component disc being... | 12/12/2000 |
| 6088323 | Optical disk, optical disk device, and optical disk recording method The present invention relates to an optical disk, an optical disk device, and an optical disk recording method. When it is applied to, for example, a compact disk. It attempts to reduce a jitter at the time of reproduction, and reproduces surely the recor... | 07/11/2000 |
| 5912874 | Calibrating an optical detector to minimize noise from undesired perturbations in disk surface A magnetooptical disk recording device has a far-field detector for detecting radial position of a laser beam with respect to tracks on the disk. The far-field detector has a reference line dividing first and second photo detectors. The reference line is ... | 06/15/1999 |
| 5774446 | Segmented audio and visual compact disks The present invention relates to a segmented cylindrical audio-visual device (10) having interlocking disks (12) a first disk (12A) has a first disk bottom side (12AB) with a first disk bottom side female connector (12ABB) centrally positioned thereon. Th... | 06/30/1998 |
| 5748607 | Optical disc having large display patterns and its manufacturing apparatus An optical disk having both recording surfaces on which are formed pits trains. A recognizable display pattern is formed by a group of dummy pits formed on one of the recording surfaces. An apparatus for manufacturing the optical disk in which a light bea... | 05/05/1998 |
| 5440637 | Listening and display unit A listening and display unit for playing and promoting audio recordings, including a display surface for promotional and instructional messages, two or more audio jacks connected by an audio cable to one of several player units, a AC/DC power unit to powe... | 08/08/1995 |
| 4996681 | Integral card for protectively enclosing an optical disk and a visual information bearing area An integral data storage disk card includes a planar rectangular base member on a portion of which a data storage disk is disposed for rotation relative to the base member and within an overlaying cover fixed to the base member to protect the data storage... | 02/26/1991 |
| 4448827 | Optically readable information disc comprising an envelope of cross-linked synthetic resin An optically readable information disc having a carrier body of polycarbonate which on one side has an optically readable information track which is provided in the surface of the carrier body and which is covered with a reflection layer, the disc compris... | 05/15/1984 |
| 4341952 | Variable pitch grooved label for video disc A video disc record suitable for use with a video disc player apparatus is provided with a label for identifying the program material stored on the surface of the record. The label is formed in a machine readable format which comprises grooves in the surf... | 07/27/1982 |
| 4329575 | Video disc having a label for identifying material recorded thereon A video disc record suitable for use with a video disc player apparatus is provided with a label for identifying the program material stored on the surface of the record. The label is formed in a machine readable format which comprises grooves in the surf... | 05/11/1982 |
| 4287316 | Transparent resin composition for information signal recording discs A transparent resin composition comprising (1) 6 to 100% by weight of a nitrile graft copolymer comprising a rubber trunk polymer and a branch polymer grafted thereon, which has been obtained by graft-polymerizing onto the rubber trunk polymer a monomer m... | 09/01/1981 |
