US Patent No: 7,199,977
Number of patents in Portfolio can not be more than 2000
Magnetic recording disk having a transition zone
Stats
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Apr 3, 2007
Issued date -
Nov 3, 2003
filing date -
10/701,059
serial no -
In Force
status
Importance
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Abstract
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
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 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 | 19 | 2001 | |
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| 6,075,683 Disk drive with passive multiple fly height slider and cooperative disk pattern | 12 | 1993 | |
| 5,870,250 Method and apparatus for improving file capacity using different flying height profiles | 35 | 1996 | |
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| 5,798,164 Zone textured magnetic recording media | 16 | 1995 | |
| 6,139,936 Discrete track media produced by underlayer laser ablation | 27 | 1997 | |
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| 5,377,058 Fly height servo control of read/write head suspension | 128 | 1992 | |
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| 5,673,156 Hard disk drive system having virtual contact recording | 52 | 1995 | |
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| 6,597,539 Suspension assembly for supporting a read/write head over a rotating storage disk with dynamically adjustable fly height | 29 | 1999 | |
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| 5,644,451 Mechanism for loading and unloading of read/write heads at an inner diameter of a disk | 20 | 1995 | |
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| 6,057,984 Method for data writing/read-out using a contact start and stop system | 13 | 1999 | |
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| 5,875,083 Magnetic disc having planiarized CSS zone | 26 | 1996 | |
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| 6,330,124 Magnetic disk device using a contact start stop system | 6 | 2000 | |
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| 6,351,345 Air bearing slider and method of producing the same | 29 | 1999 | |
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| 6,381,090 Hard disk drive head-media system having reduced stiction and low fly height | 23 | 1998 | |
Patent Citation Ranking
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 |