Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 21 - Head arrangements not specific to the method of recording or reproducing
Patents for G11B 21 - Head arrangements not specific to the method of recording or reproducing (20,963)
11/2003
11/13/2003US20030210621 Rotation control circuit, semiconductor integrated circuit, optical disk drive and method for controlling the same
11/13/2003US20030210491 Magnetic recording unit and magnetic recording medium
11/13/2003US20030210490 Method of and apparatus for preventing generating of off-tracking in hard disc drive
11/12/2003EP1361578A1 Method and apparatus for preventing off-tracking in hard disc drive
11/12/2003EP1361568A1 Optical servo track identification on tape storage media
11/12/2003CN1455930A Suspension, head gimbal assembly, and method of manufacturing nead gimble assembly
11/12/2003CN1455929A Suspension and head gimbal assembly
11/12/2003CN1455928A Head slider with actuator for fine positioning and method of manufacturing the head slider
11/12/2003CN1455927A Actuator for positioning head element finely and head device with the actuator
11/12/2003CN1455919A Head gimbal assembly
11/12/2003CN1455410A Hard-disc driver having disc protector and magnetic head protector
11/12/2003CN1455392A Magnetic head and magnetic recording device with same
11/12/2003CN1127732C Gimbal spring and suspension assembly for head gimbal assembly
11/12/2003CN1127731C Improved notch filtering as used in disc drive servo
11/12/2003CN1127723C Disc apparatus and thread-moving method therefor
11/11/2003US6647148 Boundary line detecting method
11/11/2003US6646962 Apparatus for detecting dropout, an error signal extracting unit, and unit for identifying type of dropout in an optical pickup
11/11/2003US6646833 Head assembly capable of reading floppy discs of varying densities and floppy-disc drive incorporating the same
11/11/2003US6646832 Slider for load/unload operation with high stiffness and low unload force
11/11/2003US6646829 Slider materials
11/11/2003US6646825 Data storage using disk media
11/11/2003US6646824 Head-positioning control method and device for a disk device
11/06/2003WO2003022019A3 Wireless suspension design to accommodate multiple drive designs
11/06/2003US20030206377 Integrated latch/voice-coil-motor magnet assembly
11/06/2003US20030206375 Magnetic head device and flexible disc device using the same
11/06/2003US20030206374 Magnetic head and magnetic recording apparatus provided with the same
11/06/2003US20030206368 Hard disk drive having disk protector and magnetic head protector
11/06/2003US20030206367 Disk drive system with enclosed removable cartridge including voice coil/head/disk assembly
11/06/2003US20030206366 Reaction mass dual-stage actuator (DSA) and sensor
11/06/2003US20030206365 Reducing actuator arm oscillation during settle mode in a disc drive servo system
11/06/2003US20030206360 Recording medium and apparatus for protecting copyrighted digital data
11/06/2003US20030205941 Electromagnetic actuator and composite electromagnetic actuator apparatus
11/06/2003US20030205321 Method of manufacturing a scanning device with adjustable frames
11/05/2003EP1359568A2 Hard disk drive having disk protector and magnetic head protector
11/05/2003CN2585362Y Hard disc device having dynamic magnetic head read-write equipment
11/05/2003CN2585361Y Magnetic disc inertial locking means
11/05/2003CN2585360Y Structure for driving magnetic disc
11/05/2003CN2585359Y Magnetic disc inertial locking means
11/05/2003CN2585358Y Structure for driving magnetic disc
11/05/2003CN1453776A Method for controlling oblique servo process in DVD system
11/05/2003CN1453774A Method for compensating change of CD lines track pitch
11/05/2003CN1127087C Mask for exposure and exposure method thereof with the same mask of exposure
11/05/2003CN1127073C Disk apparatus
11/04/2003US6643249 Disc ejecting apparatus
11/04/2003US6643236 Method of elimination of interference created by CDR/W run-out motor on sledge servers
11/04/2003US6643231 Optical disc apparatus and method
11/04/2003US6643100 Magnetic head having a chamfer thereof oriented toward medium and method for manufacturing the same
11/04/2003US6643098 Head slider having a terminal group of lubricant of lubrication layer different from that of a medium
11/04/2003US6643088 Magnetic disk drive and method of controlling a movement of carriage in an unload operation of head
11/04/2003US6643087 Disk drive with improved retract circuit and method
11/04/2003US6643080 Resonance identification by commanding a spindle speed change
10/2003
10/30/2003WO2003090226A1 Bi-directional servo track writing to minimize sidewall writing at high skew angles
10/30/2003US20030202433 Method of compensating for variations in track pitches of optical discs
10/30/2003US20030202293 Disk drive
10/30/2003US20030202274 Disk unit and temperature control method thereof
10/29/2003EP1357549A2 Method of controlling tilt servo in DVD system
10/29/2003EP1356465A1 Positioning control for read and/or write head
10/29/2003CN1452169A 盘驱动器与盘介质 Disk drives and disk media
10/29/2003CN1452165A Control device and method for recording and reproducing information
10/28/2003US6639758 Disk drive apparatus including a load/unload ramp with different angles for standard and depopulated versions
10/28/2003US6639757 Heat dissipation structures for integrated lead disk drive head suspensions
10/28/2003US6639756 Magnetic head having raised element and magnetic head apparatus using the same
10/28/2003US6639755 Dual center pad air bearing for improved flyability and alumina sensitivity
10/28/2003US6639750 Head loading/unloading control method and storage device
10/28/2003US6639749 Supplying power from a spindle motor in a disc drive system
10/28/2003US6638670 Etching photoresist layers formed on substrate surfaces having magnetoresistive thin films to form magnetic recording media such as magnetic heads
10/23/2003WO2003044780A3 Appliance for recording or playing back information having means for detecting or moving the scanning location on a disc with a wobble track
10/23/2003US20030198160 Method of controlling tilt servo in DVD system
10/23/2003US20030197979 Magnetic disk device and magnetic head slider
10/23/2003US20030197978 Magnetic head slider having protrusions provided on the medium-facing surface and manufacturing method therefor
10/23/2003US20030197968 Bi-directional servo track writing to minimize sidewall writing at high skew angles
10/23/2003US20030197967 Controller for information recording and reproducing device and control method for the information recording and reproducing device
10/23/2003US20030197964 Disk device and disk medium
10/22/2003EP1355312A2 Disk device and disk medium
10/22/2003EP1355305A2 Controller and control method for information recording and reproducing device
10/22/2003CN1451162A Microacturator assisted seek and hysteresis correction method and apparatus for a disc drive
10/22/2003CN1451158A Bynamically symmetric actuator
10/22/2003CN1450530A Actuator latch apparatus for hard disc driver
10/22/2003CN1125440C Magnetic memory drive and optical device
10/21/2003US6636473 Optical disc unit having guide shaft for guiding optical pickup
10/21/2003US6636382 Multilayer suspension, head gimbal assembly
10/21/2003US6636380 Hard disk drive
10/21/2003US6636374 Intelligent speed monitoring auto retract system
10/21/2003US6634083 Method of forming a magnet/keeper assembly for head level microactuator
10/16/2003WO2003085669A1 Carriage sub assembly of disk device
10/16/2003WO2003021303A3 Optical disk drive actuator assembly
10/16/2003US20030194460 Mold monitoring apparatus for injection molding machine
10/16/2003US20030193873 Disk player using a single motor in common for driving its tray and optical pickup
10/16/2003US20030193855 Disk device and seek control method
10/16/2003US20030193787 Structure of mounting flexible wiring board
10/16/2003US20030193755 Piezoelectric actuator and information storage apparatus
10/16/2003US20030193754 Actuator latch apparatus for hard disk drive
10/16/2003US20030193753 Wiring member of suspension for disc drive
10/16/2003US20030193752 Suspension and head assembly
10/16/2003US20030193751 Head suspension having different hardness contact surfaces for head slider control during shock
10/16/2003US20030193750 Magnetic disk device and magnetic head slider
10/16/2003US20030193749 Magnetic head slider having protrusions provided on the medium-facing surface and manufacturing method therefor
10/16/2003US20030193741 Magnetic head, and device and method for manufacturing the same
10/16/2003US20030193734 Apparatus and method for dynamic fly height adjustment
10/15/2003EP1353325A1 Actuator latch apparatus for hard disk drive
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