Patent US5097369A successfully refreshed from Google Patents.
US5097369A
Expired / Lapsed
US
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Magnetic head air-bearing slider
Assignee: TDK Corp
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Filing: 1990-09-05
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Granted: 1992-03-17
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Expires: 2010-09-05
Abstract
Abstract A magnetic head has a slider provided with reading/writing elements wherein the slider has a recessed portion for generating a negative pressure at a surface so that the bottom surface of the recessed portion is slanted at a predetermined grade toward the surface at the side of an air in-flowing end, and the bottom surface terminates at an end of the slider at the side of an air discharging end.
Inventors
- 👤 Mikio Matsuzaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:35
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/60; G11B5/6005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A slider, in a magnetic head including the slider and at least one read/write element, for generating a negative pressure region between the slider and an opposing magnetic disk, which comprises: an air inflowing side surface at a front end; an air outflowing side surface at a rear end; a first flat top side surface between the air inflowing and air outflowing ends; a second top side surface recessed in said first flat top side surface which includes a flat rear portion connected to said air outflowing side surface, said flat rear portion being at a slant with respect to said first flat top surface and being sloped away from the front end at a predetermined grade, and a front portion that is cylindrically arc shaped.
Claim 2
Dependent Claim
126 words
A slider, in a magnetic head including the slider and at least one read/write element, for generating a negative pressure region between the slider and an opposing magnetic disk, which comprises: an air inflowing side surface at a front end; an air outflowing side surface at a rear end; a first flat top side surface between the air inflowing and air outflowing ends; a second top side surface recessed in said first flat top side surface which includes a flat rear portion connected to said air outflowing side surface, said flat rear portion being at a slant with respect to said first flat top surface and being sloped away from the front end at a predetermined grade, and a front portion that is cylindrically arc shaped.
Claim 3
Dependent Claim
40 words
A slider, according to claim 1, which further comprises: a flat sloped surface between said first flat top surface and said air inflowing side surface which slopes away from said first flat top surface towards said air inflowing side surface.
Claim 4
Dependent Claim
28 words
A slider, according to claim 1, wherein: said flat sloped surface has a rear end portion adjacent to a front end portion of said second top side surface.
References Cited (Backward Citations)
US3823416A
Cited
US3855625A
Cited
US4218715A
Cited
US4670806A
Cited
US4475135A
Cited
US4490766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |