US5111351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated magnetic read/write head/flexure/conductor structure
Assignee: Seagate Technology LLC
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Filing: 1991-06-05
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Granted: 1992-05-05
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Expires: 2011-06-05
Abstract
Abstract An integrated head/flexure/conductor structure in a system for the reading and writing of information with respect to a relatively moving, contacted medium, such as a disk or drum, and a method for manufacturing the same. The proposed structure takes the form of a micro-dimension, elongate, dielectric flexure body, and embedded within such body both magnetic read/write pole structure, and electrical coil and conductor structure operatively associated with the pole structure. The flexure body and the embedded constituents are formed on an atom-by-atom basis utilizing one or more conventional material-deposition processes.
Inventors
- 👤 Harold J. Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:32
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/31; G11B5/3103; G11B5/48; G11B5/4806; G11B5/484
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
A magnetic recording system comprising an integrated, unitary read/write head/flexure/conductor structure including an elongate dielectric flexure body having embedded therewithin a magnetic read/write head including pole means, and electrical coil and conductor means operatively associated with said pole means, with said structure having a mass less than about 1.5-milligrams, and a magnetic recording medium moveable relative to said read/write head adjacent and in continuous sliding contact with said structure.
Claim 2
Dependent Claim
69 words
A magnetic recording system comprising an integrated, unitary read/write head/flexure/conductor structure including an elongate dielectric flexure body having embedded therewithin a magnetic read/write head including pole means, and electrical coil and conductor means operatively associated with said pole means, with said structure having a mass less than about 1.5-milligrams, and a magnetic recording medium moveable relative to said read/write head adjacent and in continuous sliding contact with said structure.
Claim 3
Dependent Claim
16 words
The system of claim 1, wherein said medium takes the form of a rigid recording medium.
Claim 4
Dependent Claim
16 words
The system of claim 1 or 2, wherein said medium takes the form of a drum.
Claim 5
Dependent Claim
16 words
The system of claim 1 or 2, wherein said medium takes the form of a disk.
Claim 6
Independent Claim
27 words
The system of claims 1 or 2, wherein said medium includes a recording surface, and an easy axis of magnetization which is substantially normal to said surface.
Claim 7
Dependent Claim
27 words
The system of claim 1 or 2, wherein said medium includes a recording surface, and an easy axis of magnetization which is substantially parallel to said surface.
Claim 8
Independent Claim
25 words
The system of claims 1 or 2, wherein the area of contact between said structure and said medium is less than about 0.4-millimeters 2 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-05 | 1995-11-04 | 1996-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-05 | 1999-11-04 | 2000-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-05 | 2003-11-04 | 2004-05-05 | $7700.00 | Window Closed / Lapsed |