Magnetic recording disk having a transition zone

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7199977
APP PUB NO 20040174636A1
SERIAL NO

10701059

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A disk drive having a magnetic recording disk with a transition zone is described. A surface texture of the transition zone induces the head to fly at a greater height than when operating over a data zone, while transitioning the head to a landing zone to park.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WD MEDIA, INC.SAN JOSE, CA181

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishihira, Henry S San Jose, CA 9 445
Suzuki, Shoji San Jose, CA 175 3584

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5377058 Fly height servo control of read/write head suspension 177 1992
 
WESTERN DIGITAL TECHNOLOGIES, INC. (2)
6075683 Disk drive with passive multiple fly height slider and cooperative disk pattern 13 1993
5870250 Method and apparatus for improving file capacity using different flying height profiles 35 1996
 
SONY CORPORATION (1)
5875083 Magnetic disc having planiarized CSS zone 26 1996
 
TDK CORPORATION (1)
6330124 Magnetic disk device using a contact start stop system 6 2000
 
KOMAG, INC. (1)
5673156 Hard disk drive system having virtual contact recording 52 1995
 
MAXTOR CORPORATION (1)
6597539 Suspension assembly for supporting a read/write head over a rotating storage disk with dynamically adjustable fly height 36 1999
 
UNITED MODULE CORPORATION (1)
6139936 Discrete track media produced by underlayer laser ablation 29 1997
 
SEAGATE TECHNOLOGY LLC (5)
6020045 Textured magnetic recording medium having a transition zone 21 1996
* 5870265 Magnetic recording disc having an idle fly zone and tapering transition zones on each side thereof 8 1997
6473259 Disk head height control 22 1999
6529347 Disc drive slider having textured pads 9 2001
6563673 Method and apparatus for minimizing slider fly heights over patterned media 23 2001
 
SAMSUNG INFORMATION SYSTEMS AMERICA (1)
* 5644451 Mechanism for loading and unloading of read/write heads at an inner diameter of a disk 20 1995
 
WD MEDIA, INC. (1)
6381090 Hard disk drive head-media system having reduced stiction and low fly height 82 1998
 
SHOWA DENKO K.K. (1)
6057984 Method for data writing/read-out using a contact start and stop system 13 1999
 
TOSHIBA STORAGE DEVICE CORPORATION (1)
* 6351345 Air bearing slider and method of producing the same 29 1999
 
DIAMONDOP, LLC (1)
5798164 Zone textured magnetic recording media 16 1995
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Singapore PTE, Ltd. (1)
9177586 Magnetic disk and manufacturing method thereof 1 2009
 
WESTERN DIGITAL TECHNOLOGIES, INC. (5)
8993134 Electrically conductive underlayer to grow FePt granular media with (001) texture on glass substrates 0 2012
9382496 Lubricants with high thermal stability for heat-assisted magnetic recording 0 2014
9001630 Energy assisted magnetic recording medium capable of suppressing high DC readback noise 0 2014
9581510 Sputter chamber pressure gauge with vibration absorber 0 2014
9257134 Allowing fast data zone switches on data storage devices 1 2014
 
WD MEDIA (SINGAPORE) PTE. LTD. (8)
9047903 Perpendicular magnetic recording medium and process for manufacture thereof 0 2009
8877359 Magnetic disk and method for manufacturing same 1 2009
8859118 Perpendicular magnetic recording medium 1 2011
8908315 Evaluation method of magnetic disk, manufacturing method of magnetic disk, and magnetic disk 0 2011
9240204 Perpendicular magnetic recording disc 0 2011
8828566 Perpendicular magnetic recording disc 0 2011
9349404 Perpendicular magnetic recording disc 0 2011
8951651 Perpendicular magnetic recording disk 0 2011
 
WD MEDIA, INC. (4)
7733605 Magnetic recording disk having a transition zone 57 2006
* 2007/0070,549 Magnetic recording disk having a transition zone 56 2006
* 2007/0070,541 Magnetic recording disk having a transition zone 1 2006
8064156 Magnetic recording disk having a transition zone 56 2010
 
WESTERN DIGITAL (FREMONT), INC. (1)
9190094 Perpendicular recording media with grain isolation initiation layer and exchange breaking layer for signal-to-noise ratio enhancement 0 2013
 
WD Media, LLC (33)
9330685 Press system for nano-imprinting of recording media with a two step pressing method 0 2009
9028985 Recording media with multiple exchange coupled magnetic layers 0 2011
9029308 Low foam media cleaning detergent 1 2012
9269480 Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recording 1 2012
8941950 Underlayers for heat assisted magnetic recording (HAMR) media 3 2012
9034492 Systems and methods for controlling damping of magnetic media for heat assisted magnetic recording 1 2013
8980076 Electro-deposited passivation coatings for patterned media 0 2013
9153268 Lubricants comprising fluorinated graphene nanoribbons for magnetic recording media structure 0 2013
9183867 Systems and methods for forming implanted capping layers in magnetic media for magnetic recording 0 2013
9093122 Systems and methods for improving accuracy of test measurements involving aggressor tracks written to disks of hard disk drives 0 2013
9339978 Press system with interleaved embossing foil holders for nano-imprinting of recording media 0 2013
8947987 Systems and methods for providing capping layers for heat assisted magnetic recording media 1 2013
8867322 Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media 3 2013
9064521 Manufacturing of hard masks for patterning magnetic media 1 2013
9406330 Method for HDD disk defect source detection 0 2013
9047880 Heat assisted magnetic recording method for media having moment keeper layer 0 2013
9542968 Single layer small grain size FePT:C film for heat assisted magnetic recording media 0 2013
9296082 Disk buffing apparatus with abrasive tape loading pad having a vibration absorbing layer 0 2013
9177585 Magnetic media capable of improving magnetic properties and thermal management for heat-assisted magnetic recording 1 2013
9389135 Systems and methods for calibrating a load cell of a disk burnishing machine 0 2014
9025264 Methods for measuring media performance associated with adjacent track interference 1 2014
9042053 Thermally stabilized perpendicular magnetic recording medium 0 2014
9159350 High damping cap layer for magnetic recording media 0 2014
9082447 Determining storage media substrate material type 0 2014
9227324 Mandrel for substrate transport system with notch 0 2014
8995078 Method of testing a head for contamination 2 2014
9449633 Smooth structures for heat-assisted magnetic recording media 0 2014
9401300 Media substrate gripper including a plurality of snap-fit fingers 0 2014
9218850 Exchange break layer for heat-assisted magnetic recording media 2 2014
9280998 Acidic post-sputter wash for magnetic recording media 0 2015
9275669 TbFeCo in PMR media for SNR improvement 0 2015
9431045 Magnetic seed layer used with an unbalanced soft underlayer 0 2015
9406329 HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers 1 2015
 
MIPOX CORPORATION (1)
9447368 Detergent composition with low foam and high nickel solubility 0 2014
 
WESTERN DIGITAL CORPORATION (2)
9093100 Magnetic recording medium including tailored exchange coupling layer and manufacturing method of the same 0 2013
9142241 Perpendicular magnetic recording medium and method of manufacturing the same 0 2013
 
WESTERN DIGITAL (FREMONT), LLC (1)
9196283 Method for providing a magnetic recording transducer using a chemical buffer 0 2013
 
WD MEDIA (SINGAPORE) PTE. LTD. (4)
9005782 Magnetic disk and method of manufacturing the same 0 2009
* 2011/0026,162 MAGNETIC DISK AND METHOD OF MANUFACTURING THE SAME 2 2009
9558778 Lubricant compound for magnetic disk and magnetic disk 0 2010
9472227 Perpendicular magnetic recording media and methods for producing the same 0 2011
* Cited By Examiner

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