| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 360236400 | Leading end detail | 13 |
| 20090002891 | HEAD, HEAD SUSPENSION ASSEMBLY, AND DISK DEVICE PROVIDED WITH THE SAME - According to one embodiment, a slider of a head includes a trailing step portion which protrudes from a facing surface of the slider, is situated on the downstream side of a negative-pressure cavity with respect to an airflow, and has a top surface, a trailing pad which protrudes from the top surface, and an adjustment recess which is formed in the top surface on the upstream side of the trailing pad with respect to the airflow and is shallower than the negative-pressure cavity. The adjustment recess defines a first step portion, which extends across a first direction and hangs from the top surface toward a bottom of the adjustment recess, and a second step portion, which extends across the first direction, is spaced in the first direction from the first step portion, and rises from the bottom of the adjustment recess toward the top surface. | 01-01-2009 |
| 20110090598 | HEAD-SLIDER CONFIGURED TO FLY WITH A VARIABLE FLY PITCH AND A HARD-DISK DRIVE INCLUDING THE HEAD-SLIDER - A head-slider. The head-slider includes a pair of leading-edge air-bearing surfaces formed on a leading-edge portion of a disk-facing slider-surface of the head-slider, a center air-bearing surface formed at a central portion of a trailing-edge portion of the disk-facing slider-surface, and a magnetic-recording head disposed at the central portion of the trailing-edge portion. At least one leading-edge air-bearing surface of the pair has a form of a partially truncated rectangle with a longitudinal axis of the partially truncated rectangle oriented substantially parallel to a longitudinal axis of the head-slider. The partially truncated rectangle is defined by a rectangle truncated so that a first corner portion on the inside-diameter side of the leading-edge air-bearing surface and a second corner portion on the outside-diameter side of the leading-edge air-bearing surface have been cut away to form a vertex of the partially truncated rectangle in proximity to the leading edge of the head-slider. | 04-21-2011 |
| 20120099225 | SERVO WRITE ROBUST AND GOOD ALTITUDE PERFORMANCE ABS - A head slider for a disk drive storage device. In general, the head slider should fly at the target height above the disk without crashing onto the hard disk. The head slider has an outside flange that encloses a plateau and an inside flange that encloses a plateau. The two plateaus may have the same surface area or the outside plateau may have a greater surface area. Because of the design of the outside flange, the likelihood that the head slider will crash on the hard disk is reduced. | 04-26-2012 |
| 20120127613 | SLIDER PAD FOR CONTACT MITIGATION - An apparatus and associated method for a slider pad that allows for contact to be mitigated without plastic deformation. Various embodiments of the present invention are generally directed to a slider that presents a transducer and has at least one air bearing surface (ABS) feature. The ABS feature comprises a pair of sidewalls spaced a distance X apart. A pad is deposited on the ABS feature so that the pad comprises a hemispherical cross-section and has a circumferential diameter greater than X. | 05-24-2012 |
| 20130083433 | MAGNETIC TRANSDUCER - A magnetic head that includes: a slider having a leading edge and a trailing edge; and a transducer, the transducer formed on the trailing edge of the slider and the transducer including: a substrate; a basecoat positioned adjacent the substrate, wherein the basecoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina; a reader; a writer; a heater; and an overcoat encasing at least a portion of the transducer, wherein the overcoat includes a material having a Young's modulus that is less than that of alumina and a coefficient of thermal expansion that is less than that of alumina. | 04-04-2013 |
| 20140016232 | Non-Uniform Write Gap Perpendicular Writer for Shingle Writing - A PMR writer is disclosed that includes at least one of a recessed center section in the write pole trailing edge and a center recessed trailing shield to improve the field gradient at track edge. In all embodiments, there is a non-uniform write gap between the trailing edge and the trailing shield. The recessed portion of the write pole trailing edge and/or center recess of the trailing shield has a thickness from 10 to 40 nm in a down-track direction and a width in a cross-track direction of 20 to 200 nm. The distance between the center recess and a corner of the trailing edge is from 20 to 80 nm. A sequence of steps is provided to fabricate the two embodiments of the present invention. | 01-16-2014 |
| 20140177103 | PMR Writer Device with Multi-Level Tapered Write Pole - A perpendicular magnetic recording (PMR) head is fabricated with a multi-level tapered write pole. The write pole comprises a main pole with a tapered tip on a leading edge or a trailing edge, on which is formed at least one yoke that has a tapered edge. The edge of the yoke is recessed from the ABS of the main pole, giving the head a stepped profile. The yoke can be a single yoke formed on one side of the main pole or it can be two yokes formed on both the leading and trailing sides of the main pole. The write pole structure creates an efficient channeling of magnetic flux to the ABS surface of the pole tip which produces magnetic recording field at high area densities. | 06-26-2014 |
| 20150055252 | Non-Uniform Write Gap Perpendicular Writer for Shingle Writing - A PMR writer is disclosed that includes a recessed center section in the write pole trailing edge and a center recessed trailing shield to improve the field gradient at track edge. In all embodiments, there is a non-uniform write gap between the trailing edge and the trailing shield. The recessed portion of the write pole trailing edge and/or center recess of the trailing shield has a thickness from 10 to 40 nm in a down-track direction and a width in a cross-track direction of 20 to 200 nm. The distance between the center recess and a corner of the trailing edge is from 20 to 80 nm. A sequence of steps is provided to fabricate the two embodiments of the present invention. | 02-26-2015 |
| 20150103445 | T-SHAPED WRITE POLE - A magnetic element may be generally configured with at least a write pole that has leading and trailing regions on an air bearing surface. The leading region may have a trailing width connected to a leading width of the trailing region via a transition feature to form a substantially T-shaped cross-section on the air bearing surface. | 04-16-2015 |
| 20150124354 | CONTACT PAD FOR RECORDING HEADS - A recording head that includes at least one protection feature that prevents at least one other feature of the recording head from directly colliding with a data storage medium with which the recording head communicates. The recording head includes a transducer element having a leading edge and a trailing edge. The recording head also includes a transducer element heater located closer to the leading edge of the transducer element than the trailing edge of the transducer element. A contact pad is interposed between the leading edge of the transducer element and the transducer element heater to prevent the transducer element from directly colliding with the data storage medium. | 05-07-2015 |
| 20160019916 | Unbalanced Data Writer Coil - A data writer may be configured with at least a write pole and a continuous coil with the continuous coil having a first turn with a first cross-sectional shape and a second turn with a second cross-sectional shape that differs from the first cross-sectional shape. The second turn may be positioned proximal a leading edge of the write pole and an air bearing surface while the first turn is positioned distal the air bearing surface. | 01-21-2016 |
| 20160064018 | WRITE HEAD WITH COIL STRUCTURE ALIGNED WITH YOKE - A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip. | 03-03-2016 |
| 20180025745 | MAGNETIC RECORDING WRITE APPARATUS HAVING A STEPPED CONFORMAL TRAILING SHIELD | 01-25-2018 |
