US Patent No: 7,199,977

Number of patents in Portfolio can not be more than 2000

Magnetic recording disk having a transition zone

ALSO PUBLISHED AS: 20040174636

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

all claims..

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
WD MEDIA, INC.SAN JOSE, CA162

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishihira, Henry S San Jose, CA 13 165
Suzuki, Shoji Hitachi, JP 222 1990

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SEAGATE TECHNOLOGY LLC (5)
6,020,045 Textured magnetic recording medium having a transition zone 21 1996
5,870,265 Magnetic recording disc having an idle fly zone and tapering transition zones on each side thereof 8 1997
6,473,259 Disk head height control 22 1999
6,529,347 Disc drive slider having textured pads 9 2001
6,563,673 Method and apparatus for minimizing slider fly heights over patterned media 20 2001
 
HGST NETHERLANDS B.V. (2)
6,075,683 Disk drive with passive multiple fly height slider and cooperative disk pattern 13 1993
5,870,250 Method and apparatus for improving file capacity using different flying height profiles 35 1996
 
UNITED MODULE CORPORATION (2)
5,798,164 Zone textured magnetic recording media 16 1995
6,139,936 Discrete track media produced by underlayer laser ablation 28 1997
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,377,058 Fly height servo control of read/write head suspension 155 1992
 
KOMAG, INC. (1)
5,673,156 Hard disk drive system having virtual contact recording 52 1995
 
MAXTOR CORPORATION (1)
6,597,539 Suspension assembly for supporting a read/write head over a rotating storage disk with dynamically adjustable fly height 31 1999
 
SAMSUNG INFORMATION SYSTEMS AMERICA (1)
5,644,451 Mechanism for loading and unloading of read/write heads at an inner diameter of a disk 20 1995
 
SHOWA DENKO K.K. (1)
6,057,984 Method for data writing/read-out using a contact start and stop system 13 1999
 
SONY CORPORATION (1)
5,875,083 Magnetic disc having planiarized CSS zone 26 1996
 
TDK CORPORATION (1)
6,330,124 Magnetic disk device using a contact start stop system 6 2000
 
TOSHIBA STORAGE DEVICE CORPORATION (1)
6,351,345 Air bearing slider and method of producing the same 29 1999
 
WD MEDIA, INC. (1)
6,381,090 Hard disk drive head-media system having reduced stiction and low fly height 25 1998

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
WD MEDIA, INC. (2)
7,733,605 Magnetic recording disk having a transition zone 1 2006
8,064,156 Magnetic recording disk having a transition zone 1 2010

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 3, 2014
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 3, 2018
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00

Full Text

 
loading....