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| Number | Title | Issue Date |
| 7265925 | Recorded data deleting device for hard disk A recorded data eraser 1 defines therein a cavity 2 for insertion of a hard disk drive 20 in the cavity 2 and includes a coil 4 being arranged around the cavity 2 so as to encircle the hard disk drive 20 when the hard... | 09/04/2007 |
| 6973011 | Magnetic head cleaning disk for use in magneto-optical recording and reproducing device The present invention provides a cleaning disk and a magneto-optical disk drive apparatus being simple in structure, adaptable to cleaning disks having various specifications, low in power consumption, low in electromagnetic noise, and preventing damage to the magne... | 12/06/2005 |
| 6909674 | Thermally assisted magnetic write head system utilizing multilayer thermal barrier coatings A magnetic head system, and method for manufacturing a magnetic head are provided. Included is at least one layer and a heating element positioned adjacent the at least one layer. The at least one layer includes a plurality of sub-layers for providing an optimal the... | 06/21/2005 |
| 6711102 | Magneto-optical cleaning disk The present invention provides a cleaning disk and a magneto-optical disk drive apparatus being simple in structure, adaptable to cleaning disks having various specifications, low in power consumption, low in electromagnetic noise, and preventing damage to the magne... | 03/23/2004 |
| 5881030 | Downsized magneto-optical disk drive device An optical disk apparatus is downsized. The optical disk apparatus comprises an optical disk drive mechanism having a rotating mechanism for rotating an optical disk and an optical head for optically reading data on the optical disk, and a circuit board. ... | 03/09/1999 |
| 5859831 | Disk cartridge A disk cartridge has an overwritable magneto-optical disk rotably mounted therein. The overwritable magneto-optical disk cartridge is usable in compatible type disk drives which also accept conventional, non-overwritable, magneto-optical disks. A magnetic... | 01/12/1999 |
| 5771217 | Magneto-optical disk apparatus having a ejector arm and magnetic field generating means mounted on a stationary base A disk apparatus in which the thickness is suppressed. A recording/reproducing medium containing a disk rotatably in a hard case is moved substantially in a horizontal direction through an opening of the base of the disk apparatus for insertion and ejecti... | 06/23/1998 |
| 5719831 | Magneto-optical recording medium cartridge which employs magnets A magneto-optical disk cartridge includes a magnet which is magnetized substantially parallel to a surface of a magneto-optical disk for generating an initializing magnetic field. This structure permits a reduction in the thickness of the magneto-optical ... | 02/17/1998 |
| 5652739 | Apparatus for applying a magnetic field to a magneto-optical disk device An external magnetic field application apparatus is configured such that a magnet, which has a pair of magnetic poles of opposite polarities disposed side by side on a plane, is provided in an arm pivotable around a pin. A moving means, which moves the ar... | 07/29/1997 |
| 5506828 | Optical disk loading apparatus with disk loading mechanism In an optical disk drive apparatus of a disk-exchangeable type, a locking mechanism is provided for locking a disk ejecting member of the disk loading mechanism. The locking mechanism includes an ejection arm which is connected to an ejection button and w... | 04/09/1996 |
| 5400316 | High density small-diameter magnetic optical disk A magnetic optical disc comprising a magnetic optical recording layer on a transparent substrate. The disc measures less than 80 millimeters in outer diameter and is capable of recording at least 130 megabytes of compressed digital signals. The extreme st... | 03/21/1995 |
| 5369628 | Magneto-optic recording medium, magneto-optic recording system and magneto-optic recording method A magneto-optic recording medium has a cartridge provided with a magnetization direction indicating portion for indicating the direction of magnetization of a second magnetic layer. Alternatively, the direction of magnetization of the second magnetic laye... | 11/29/1994 |
| 5317556 | Information processing apparatus and optical head incorporated therein There is provided a compact and thin optical disk unit as a memory unit suitable for a portable computer such as a book type computer and a portable recording/reproducing apparatus. In the optical disk unit, the diameter of an objective lens is limited an... | 05/31/1994 |
| 5291356 | Disk storage device having eject member A disk storage device includes a head part for writing data to a storage disk inserted into the device and for reading data from the disk, an eject member which is operated when a disk cartridge containing the disk is ejected, a turntable for rotating and... | 03/01/1994 |
| 5206844 | Magnetooptic recording medium cartridge for two-sided overwriting A magnetooptic recording medium cartridge which accommodates a double face type disk-like magnetooptic recording medium with which an overwriting can be performed by modulating only the intensity of a laser beam in accordance with two-valued information t... | 04/27/1993 |
| 5184342 | Information processing device An information processing unit of the present invention stores at least information from an optical disc by directing a laser beam, under the application of a magnetic field, onto the optical disc with the information recorded thereon. The device includes... | 02/02/1993 |
| 5182742 | Recording and/or reproducing apparatus with a disc cartridge temperature sensor A recording and/or reproducing apparatus into which a disc cartridge accommodating a disc is loaded and in which information signals are adapted to be recorded on or reproduced from the disc. A temperature sensor is provided within the apparatus for conta... | 01/26/1993 |
| 5181197 | Optical disk driver and operational processing apparatus having such optical disk driver An optical disk driver using a top-loading mechanism is coupled to an operational processor, such as a personal computer. The term "a top-loading mechanism" means a mechanism for inserting and/or ejecting an optical disk via a top surface of the optical d... | 01/19/1993 |
| 5111350 | Shutter opening apparatus for an information storage disk drive system In an information disk drive system, a pivoted shutter opening lever is positioned in a cartridge receiving guide in the same plane as the disk in the cartridge. The lever is mounted on a movable pivot with a shutter engaging member positioned to begin op... | 05/05/1992 |
| 4578322 | Recording medium A recording medium is provided which comprises (a) a first recording layer; (b) a second recording layer provided in contiguity to the first recording layer; and (c) a separation layer for spatially separating the first and second recording layer. The fir... | 03/25/1986 |
