US Patent No: 5,486,964

Number of patents in Portfolio can not be more than 2000

Miniature disk drive with dynamic head loading with skewed lifting tab

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Disclosed is a disk drive information storage device having a housing and a disk means for recording and reproducing information. The disk drive information storage device utilizes an actuator comprising a body portion supported by the housing for rotation about an axis, and a load beam connected to the body portion for rotation of a first end of the load beam in a plane substantially parallel to a surface of the disk means. The load beam includes an elongated lift tab having a free end which extends beyond the first end of the load beam, with the lift tab extending along an axis which is skewed from the centerline of the load beam. A slider body including a transducer for recording and reproducing information from the disk is supported by the load beam at a position intermediate the first end of the load beam and the axis of rotation of the body portion. A cam assembly is provided on the housing adjacent to the edge of the disk means, the cam assembly including a cam surface positioned in operative relationship with the lift tab. In one embodiment, the housing has a first external dimension of about 51 mm. In another embodiment, the disk means has a diameter in the range of from about 45 mm to about 50 mm.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MOBILE STORAGE TECHNOLOGY INC.BOULDER, CO76

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blagaila, John H Boulder, CO 17 568
Dunckley, James A Boulder, CO 26 621
Furay, David M Boulder, CO 32 1076
Hopper, James F Louisville, CO 8 137
Klein, Thomas A Boulder, CO 6 97
Morehouse, James H Jamestown, CO 39 1346
Utenick, Michael R Englewood, CO 16 337
Volk, Steven B Boulder, CO 45 525

Cited Art

Patent Info (Count) # Cites Year
 
SEAGATE TECHNOLOGY LLC (12)
4,679,102 Method and means for parking read/write heads in a disc drive using the back-EMF of the spindle motor to operate a stepper motor 55 1985
4,725,907 Carriage latch for a disc drive incorporating inertial lock-up 37 1986
4,979,056 Disk drive system controller architecture 47 1987
4,864,443 Disc clamping device 48 1987
4,965,684 Low height disk drive 107 1988
4,933,785 Disk drive apparatus using dynamic loading/unloading 213 1988
4,969,059 Offset nulling system for computer disk drives 54 1988
4,996,617 Disc drive safety latch using shape memory metals 41 1989
5,050,016 Disk drive servo system using gain limited high-frequency track-following compensator 59 1989
4,979,055 Disk drive system controller architecture utilizing embedded real-time diagnostic monitor 88 1989
5,025,336 Disk drive apparatus 122 1989
5,023,737 Disc drive slider lifter using shape memory materials 47 1990
 
MAXTOR CORPORATION (6)
4,647,997 Aerodynamic latch for disk file actuator 75 1985
4,669,004 High capacity disk file with embedded sector servo 157 1986
4,783,705 High capacity disk file with embedded sector servo and SCSI interface 114 1987
4,825,321 Modular unitary disk file subsystem having increased data storage capacity 34 1987
5,027,241 Data head load beam for height compacted, low power fixed head and disk assembly 162 1990
5,208,712 Data head load beam for height compacted, low power fixed head and disk assembly 58 1991
 
PIONEER ELECTRONIC CORPORATION (3)
4,734,813 Clamper holding mechanism for positioning an information recording disk 21 1985
4,829,501 Clamper for disk player 29 1988
4,841,517 Disk clamping device 25 1988
 
SYQUEST TECHNOLOGY, INC. (3)
4,683,506 Disc drive arrangement for a hard disc cartridge with a read/write head retract mechanism 87 1983
4,630,190 Servo control apparatus for a disk drive 37 1984
4,920,462 Disc drive fine servo velocity control and method for head positioning relative to a disc 48 1988
 
U.S. PHILIPS CORPORATION (3)
4,443,874 Information-disc cassette 43 1982
4,649,531 Apparatus for centering, aligning and clamping an optical disc 28 1985
4,799,209 Clamping device for clamping an optical disc onto a drive spindle 29 1987
 
ALPS ELECTRIC CO., LTD. (2)
4,747,002 Disk clamping mechanism 24 1986
4,760,477 Disk clamping mechanism for a disk driving device 20 1986
 
AMCODYNE INCORPORATED (2)
4,535,374 Whitney-type head loading/unloading apparatus 117 1982
4,628,379 Disk runout compensator 44 1984
 
CAMBRIAN CONSULTANTS INC. (2)
4,424,543 Method and apparatus for recording transducer positioning information 87 1981
4,530,019 Servo pattern 75 1984
 
GUZIK TECHNICAL ENTERPRISES (2)
4,627,288 Bearing unloading mechanism for disc clamping unit 23 1985
4,958,839 Disc clamp employing resilient cone for spreading balls 49 1988
 
HEWLETT-PACKARD COMPANY (2)
4,823,212 Sampled servo code format and system for a disc drive 105 1986
5,041,926 Track position syncopation cancellation in a disk drive 38 1989
 
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. (2)
4,594,622 Track following servo system for a disk file 68 1984
5,072,318 Disk file with adaptive cancellation of nonrepeatable disk runout 46 1990
 
HITACHI, LTD. (2)
4,497,003 Disc positioning device 19 1982
5,014,142 Magnetic disk apparatus with head supporting structures of different proper oscillations 26 1989
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
4,578,723 Head positioning system with automatic gain control 42 1983
4,839,756 Apparatus for read/write head loading and unloading in a data recording disk file 44 1988
 
KABUSHIKI KAISHA TOSHIBA (2)
4,907,214 Eccentricity correction apparatus for an optical disk device 30 1986
4,819,103 Apparatus for reproducing data from magnetic recording medium 28 1987
 
MITSUBISHI DENKI KABUSHIKI KAISHA (2)
4,772,972 Magnetic disc apparatus with head assembly aligning mechanism 23 1987
5,189,575 Read/write head retract mechanism 34 1990
 
MOBILE STORAGE TECHNOLOGY INC. (2)
5,289,325 Rigid disk drive with dynamic head loading apparatus 50 1990
5,296,986 Rotary intertial latch for disk drive actuator to protect against rotational shock force 25 1991
 
RS PATENT HOLDING CORP. (2)
4,638,383 Micro hard-disk drive system 60 1985
5,034,837 Magnetic disk drive incorporating a magnetic actuator lock and a very small form factor 143 1989
 
BUTLER, STEPHEN, W. (1)
4,824,059 Cushioning device for remote control television equipment, and assembly thereof 80 1988
 
CANON DENSHI KABUSHIKI KAISHA (1)
4,736,358 Recording medium clamping apparatus 26 1986
 
CIT GROUP/BUSINESS CREDIT, INC. (1)
5,023,736 Magnetic latch for disk drive actuator 64 1989
 
CONNER PERIPHERALS (1)
5,025,335 Architecture for 21/2 inch diameter single disk drive 161 1989
 
DMA SYSTEMS, INC. (1)
4,663,682 Apparatus for loading and unloading a magnetic head assembly on a magnetic recording surface 72 1983
 
DRIVETEC, INC. (1)
4,539,614 Flexible magnetic disk clamping an injector mechanism 33 1983
 
E/M CORPORATION (1)
4,901,173 Apparatus for coupling record disk to disk drive 82 1988
 
FIRMA CARL FREUDENBERG (1)
4,724,501 Jacket for floppy disk 25 1985
 
FORESTLANE CO., LTD. (1)
4,379,316 Read/write head carriage assembly for a floppy disk drive 32 1981
 
INTEGRAL PERIPHERALS, A CORP. OF DE (1)
5,237,472 Rigid disk drive with dynamic head loading apparatus 66 1991
 
KAMAN AEROSPACE CORPORATION (1)
4,870,703 Magnetic disc memory unit 74 1988
 
KONICA CORPORATION (1)
4,825,310 Method and apparatus for recording servo synchronization information 23 1986
 
MAGNUM DIVISION OF TANDON CORPORATION (1)
4,409,629 Mechanism for centering and clamping a floppy disc 30 1981
 
MEMRON, INC. (1)
4,568,994 Warp resistant-dimensionally stable jacket for magnetic recording disk 26 1983
 
MITSUBISHI PLASTICS INDUSTRIES LIMITED (1)
4,655,348 Magnetic recording disc-jacket assembly 28 1984
 
NEC CORPORATION (1)
4,658,308 Method and apparatus for retracting head and braking motor of a disc drive device 44 1986
 
PERIPHERAL TECHNOLOGY INC. (1)
4,786,995 Automatic head retract system for disk drive 67 1986
 
QUANTUM CORPORATION (1)
4,772,974 Compact head and disk assembly 60 1987
 
RESEARCH INVESTMENT NETWORK, INC. (1)
5,001,700 Disk clamp and centering apparatus for a beam addressable disk drive system 37 1989
 
RODIME PLC ROTHESAY HOUSE, ROTHESAY PLACE, GLENROTHES, KY7 6PW, FIFE SCOTLAND (1)
4,568,988 Micro hard-disk drive system 73 1984
 
RODIME, PLC. (1)
4,518,904 Stepper motor control for data disk system 40 1984
 
SAGEM SA (1)
4,752,848 Spacing device for magnetic recording and/or reading head-holder pads in a disc memory apparatus 36 1986
 
SANKYO SEIKI MFG. CO., LTD. (1)
4,943,748 Motor with cup-shaped rotor having cylindrical portions of different diameter 40 1989
 
SEAGATE TECHNOLOGY, SCOTTS VALLEY, CA. A CORP. OF CA. (1)
4,716,480 Carriage latch for a disc drive 31 1986
 
SHARP KABUSHIKI KAISHA (1)
4,920,437 Disc clamping device 18 1987
 
STUFF TECHNOLOGY PARTNERS II, LTD. (1)
4,502,136 Apparatus for centering and clamping an information recording disk in a data storage device 29 1983
 
TEAC CORPORATION (1)
5,148,339 Magnetic disk storage 30 1990
 
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA (1)
4,631,606 System for detecting the position of a read-write head on a disk recording medium having servo sectors with three or more servo patterns 43 1984
 
UNISYS CORPORATION (1)
4,420,830 Disc mounting and centering device 42 1981
 
UNIVERSAL PIONEER CORPORATION (1)
4,510,592 Disk clamping device 30 1984
 
XEROX CORPORATION (1)
4,827,364 Self-compensating media centering and clamping mechanism for floppy disk drives 18 1984
 
YE DATA INC. (1)
4,705,279 Device for clamping a flexible disk 35 1986
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (4)
4,473,153 Flexible disk cartridge envelope 101 1982
4,515,272 Rosin bar holder 42 1983
4,495,553 Vehicle light assembly 8 1983
4,755,981 Spindle clamp for removable disks 40 1987

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
GEO WORLDWIDE LLC (3)
5,809,520 Interchangeable cartridge data storage system for devices performing diverse functions 117 1996
6,587,304 Interchangeable cartridge data storage system for devices performing diverse functions 3 2001
6,785,091 Interchangeable cartridge data storage system for devices performing diverse functions 2 2003
 
SEAGATE TECHNOLOGY LLC (3)
5,875,074 Adjustable head loading apparatus 16 1997
6,067,208 Adjustment feature for load/unload alignment ramp assembly 2 1998
6,731,469 Integral inertial latch design 3 2001
 
HGST NETHERLANDS B.V. (2)
6,560,074 Offset limiter for reducing potential of disk damage during unload sequence in load/unload disk drive 5 2001
6,549,378 Magnetic disk drive with offset load/unload tab 0 2001
 
SYQUEST TECHNOLOGY, INC. (2)
6,049,444 Rotatable door and door opening mechanism for a cartridge 6 1997
6,333,834 Rattle reduction mechanism in a removable cartridge for a disk drive 2 2000
 
EMC CORPORATION (1)
5,943,185 Data storage drive and cartridge having alignment openings for cartridge mounting and ejection 8 1998
 
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. (1)
6,104,574 Magnetic head with a magnetic pole sandwiched between conductive materials 12 1998
 
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. (1)
6,614,614 Method and apparatus for writing servo pattern 16 1999
 
RESEARCH INVESTMENT NETWORK, INC. (1)
6,163,415 Loading and unloading a flying lens 2 1999
 
TECH BYTE SYSTEMS LLC (1)
5,973,886 Adjustable head load ramp for digital video disk drive system 5 1997
 
WESTERN DIGITAL TECHNOLOGIES, INC. (1)
7,672,083 Disk drive with translatable ramp 0 2006