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| Number | Title | Issue Date |
| 8024748 | Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk drive A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. The EAMR disk drive includes a slider, at least one EAMR transducer on the slider, and at least one laser coupled with the slider. The slider has a slider back s... | 09/20/2011 |
| 7966630 | Head gimbal mechanism and information recording/reproducing apparatus There is provided a head gimbal mechanism 2 including a slider 10 placed between a recording medium D and a beam 11 and having a device generating near-field light, gimbal means 12 for fixing the slider to the tip of the beam 11 at... | 06/21/2011 |
| 7921435 | Optical disk drive An optical disk drive according to the present invention includes: an optical pickup 6 including a light source 23 that radiates a light beam 21 to irradiate an optical disk 100, at least one objective lens 22 for converging the be... | 04/05/2011 |
| 7921436 | Optical device integrated head An optical device integrated head having high light utilizing efficiency by decreasing the propagation loss caused from an optical source to a recording medium, conducting by mounting according to compact active alignment method for efficiently guiding a light gener... | 04/05/2011 |
| 7873969 | Transducer assembly for thermally assisted writing and read back in data storage devices A transducer assembly for a data storage system comprises a first transducer for directing electromagnetic radiation onto a storage medium adjacent to a write pole, and a second transducer for directing electromagnetic radiation onto a storage medium adjacent to a r... | 01/18/2011 |
| 7844983 | Power transmission member for head movement mechanism, and disk device equipped with the head movement mechanism A power transmission member is provided with which it is possible to lessen the impact force produced when the head of a disk device hits part of a base member or the like. The power transmission member is a power transmission member of a mechanism for moving a head... | 11/30/2010 |
| 7665102 | Heat-assisted magnetic recording method and test record reproduction method A heat-assisted magnetic recording method is provided for implementing information recording on a recording magnetic film of a magnetic recording medium rotated around a rotation center. The method includes the steps of: illuminating a recording region in the magnet... | 02/16/2010 |
| 7480924 | Magnetic recording and reproducing device and magnetic recording medium A magnetic recording and reproducing device includes: a magnetic recording medium in which a magnetic recording layer is formed in a concavo-convex pattern so that tracks are formed by convex portions of a predetermined track width and arranged in parallel in the tr... | 01/20/2009 |
| 7411793 | Optical disk device An optical disk device of the present invention has a main PC board carrying a semiconductor element and attached at the rear of a drawer to efficiently dissipate a heat generated from the semiconductor element. The drawer is formed of a material having good thermal... | 08/12/2008 |
| 7365941 | Optical recording head including an optical resonant cavity An optical recording head including a media heating device to write and read data to a heat sensitive optical media disk. The media heating device includes an optical energy resonant cavity that produces a high intensity near-field optical spot of subwavelength dime... | 04/29/2008 |
| 7340616 | Power management of storage units in a storage array Provided is a method, system, an program for power management of storage units in a storage array. A power profile is accessed for a storage array including a plurality of storage units, wherein each storage unit is enabled to operate in one of a plurality of power ... | 03/04/2008 |
| 7334238 | Optical disc device having fixing parts for directly fixing a frame of the optical disk device to an electronic device The present invention includes a frame, an optical pick-up module fixed to the frame and a circuit board forming a control circuit fixed to the frame. The frame has fixing parts to other members. ... | 02/19/2008 |
| 7327667 | Semiconductor laser and associated drive circuit substrate A single monolithic semiconductor substrate comprises a first side and a second side. The first side includes an air bearing surface. A laser integrates with the first side. The laser has an emission facet substantially co-planer with the air bearing surface. A cont... | 02/05/2008 |
| 7315452 | Optical disk device An optical disk device of the present invention has a main PC board carrying a semiconductor element and attached at the rear of a drawer to efficiently dissipate a heat generated from the semiconductor element. The drawer is formed of a material having good thermal... | 01/01/2008 |
| 7310206 | Magnetic thin film head with heat-assisted write section and hard disk drive incorporating same A thin film magnetic read/write head for use in magnetic data storage systems to enable writing of data to a magnetic data storage medium with the assistance of laser heating. The read/write head allows magnetic reading of data from the storage medium, and thermally... | 12/18/2007 |
| 7307923 | Electro magnetic field generating element, information recording and reproducing head and information recording and reproducing device To realize an electromagnetic field generating element, an information recording and reproducing head and an information recording and reproducing device for high frequency magnetic recording and reproducing by the optically assisted magnetic recording and reproduct... | 12/11/2007 |
| 7289395 | Optical pickup device of micro optical disc drive An optical pickup device of a micro optical disc drive comprises: a tracking actuator hinge-coupled to a deck rotatably in a tracking direction; a tracking arm coupled to the tracking actuator; a focusing arm connected to the tracking arm rotatably in a focusing dir... | 10/30/2007 |
| 7287263 | Disc apparatus A disc apparatus includes a casing having an opening for insertion/ejection of a disc, a rotator for clamping and rotating the disc, a disc-transferring member, a head facing a recorded face of the disc and being movable in radial directions of the disc, a rack mova... | 10/23/2007 |
| 7280264 | Magneto-optical device It is possible to reduce the size of a magneto-optical device, increase the speed of optical control, simplify power supply structure and its control, and maintain a Faraday rotation angle in an arbitrary state even after shut-off of the excitation current. The magn... | 10/09/2007 |
| 7251156 | Magnetic memory architecture with shared current line The present invention relates to magnetic or magnetoresistive random access memories (MRAMs). The present invention provides an array with magnetoresistive memory cells arranged in logically organized rows and columns, each memory cell including a magnetoresistive e... | 07/31/2007 |
| 7242644 | Optical disk drive, and a method of assembling it An optical disk drive includes an optical pick-up unit having a fixed part with at least a light source, and a movable part mounted on a guide. The movable part includes a mirror, a focusing lens, and lens-moving elements. The movable part is adapted to move a focus... | 07/10/2007 |
| 7233555 | Method for adjusting optical axis of optical disc drive A method for adjusting an optical axis of an optical disc drive. The method includes the following steps. A first reflecting member is disposed on a turntable of the optical disc drive, and is rotated along with the turntable. A laser light is emitted on the first r... | 06/19/2007 |
| 7191456 | Optical pickup head feeding device An optical pickup head feeding device (1) for driving an optical pickup head (4) of an optical recording/reproducing apparatus (100) has a motor (11), a motor housing (12) accommodating the motor, a first cone gear (13), a t... | 03/13/2007 |
| 7184371 | Optical pickup driver having piezoelectric elements of different voltages at start and steady state The present invention is directed to a drive device comprising an electromechanical transducer (25) attached to one end of a drive shaft (24) and adapted to be expanded and contracted in the axial direction of the drive shaft (24) in accordance ... | 02/27/2007 |
| 7155732 | Heat assisted magnetic recording head and method A magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, a near field transducer positioned adjacent to the air bearing surface for producing near field radiation for heating a portion of a magnetic storag... | 12/26/2006 |
| 7124421 | Lead screw adjustment structure of disc drive A lead screw adjustment structure of a disc drive to adjust a lead screw which is rotatably installed on a pickup deck and reciprocates a pickup, which includes an incorporated elastic member installed on the pickup deck to apply an elastic force in an upward direct... | 10/17/2006 |
| 7106668 | Disk drive apparatus A disk drive apparatus for a disk having helically-formed or concentric circle-like formed tracks includes a spindle motor for controlling a rotation of the disk; a pick-up device for recording or reproducing information on or from the disk; a stepping motor for mov... | 09/12/2006 |
| 7095684 | System for actively controlling the lense of an optical pickup when not in operation The present invention relates to an optical media system (40) for suppressing externally induced rattle of an optical media pickup. The system (40) comprises: an optical pickup (41) for reading from and/or writing to an optical storage medium ( | 08/22/2006 |
| 7080390 | Power transmitting device for stepping motor and disk drive provided with the same A power transmitting device for a stepping motor comprises: a stepping motor commonly serving as a power source for a pickup moving mechanism of a light load and a power source for a disk transferring mechanism of a heavy load; switching mechanism for a switching pa... | 07/18/2006 |
| 7069569 | Near-field optical head system with integrated slider and laser A near-field optical system having one or more solid state lasers and an aerodynamically shaped slider which comprise a single integrated, monolithic device fabricated from the same base semiconductor material. The monolithic optical head can be quickly and easily a... | 06/27/2006 |
| 7069568 | Record head for thermally assisted magnetic recording A record head for the thermally assisted magnetic recording on a storage medium. The head has an inductive section, which includes a magnetic circuit having a record flux guide ending in a record pole, and an optical section, which includes an optical guide ending i... | 06/27/2006 |
| 7047540 | Gear rack arrangement having resiliently braced gear racks and anti-detachment means The invention relates to a gear rack arrangement, which, for the compensation of backlash, comprises two gear racks (A, B) which are mutually displaceable on latch elements and are resiliently braced, and refers both to the assembly and disassembly characteristics o... | 05/16/2006 |
| 7043740 | Optical disc drive which can firmly fix its tray module within its housing An optical disc drive includes a housing, a positioning shaft fixed on the housing, and a tray module. The tray module includes a tray installed inside the housing with the ability to slide, a solenoid fixed on the tray for providing magnetic force, a latch installe... | 05/09/2006 |
| 7020050 | Position control of opticial head in a recording device A data player or a method in which a reading and/or writing head is positioned according to anyone of 3 methods or combinations thereof: Calculating a desirable speed curve to position the head from a first to a second position and adjust the speed of the head's mov... | 03/28/2006 |
| 7020883 | Loading mechanism of disk player A disk loading mechanism has a turntable. A turntable 36 itself is fixed in external dimensions of a brushless spindle motor, and a chucking face relevant to a disk 11 is precisely placed on a turntable base 46 with a predetermined height. On th... | 03/28/2006 |
| 7003787 | Urging structure for an output shaft of a drive motor An urging structure for an output shaft of a drive motor of the invention is configured by a pressing plate 31 which abuts against an end face 24a of an output shaft 24, and an urging spring 36 which urges the pressing plate in the... | 02/21/2006 |
| 6901598 | Tilt focus method and mechanism for an optical drive The present invention relates to a method and apparatus for dynamically positioning the objective lens in an optical disk drive to maintain focus despite loss of perpendicularity between the light beam and the information layer of the optical disk. Loss of perpendic... | 05/31/2005 |
| 6854125 | Magnetic head A magnetic head is configured so that an aspect ratio w0/h0 of a cross section of a coil (11) is set to be 1 to 4, or preferably, approximately 1.5. This configuration suppresses the heat generation in the magnetic head that performs the magneti... | 02/08/2005 |
| 6801493 | Optical pickup device An optical pickup device including a slider on which an objective lens is mounted and which is elastically movably supported by a support member, an air bearing member provided in the slider so that a lifting force pushes the slider away from the disk according to a... | 10/05/2004 |
| 6795970 | Disk loading apparatus with floatable clamp means In a disk loading apparatus according to the present invention, a clamp section is configured so as to be floatable in a direction perpendicular to the direction of disk insertion and so as to be lifted up and thereby go outside the path of disk insertion when being... | 09/21/2004 |
