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公开(公告)号：US20230110250A1
公开(公告)日：2023-04-13
申请号：US18081527
申请日：2022-12-14
Applicant: Seagate Technology LLC
Inventor： Helene Parwana Habibi , Simon Bance , Martin Liam McGarry , Raul Horacio Andruet , Martin Giles Blaber , Weibin Chen , John Charles Duda , Mark Anthony Gubbins , Erik Jon Hutchinson , Vivek Krishnamurthy , Michael Allen Seigler , Chen Wang
Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.
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12.发明授权公开(公告)号：US10403310B1
公开(公告)日：2019-09-03
申请号：US16036155
申请日：2018-07-16
Applicant: Seagate Technology LLC
Inventor： Andres David Barbosa Neira , Roberto Fernandez Garcia , Michael James Hardy , Choon How Gan , Mark Anthony Gubbins , Florin Zavaliche , Tong Zhao , Martin Giles Blaber
IPC: G11B11/105 , G11B5/187 , G11B5/48 , G11B5/60 , G11B5/00
Abstract: An apparatus comprises a slider configured for heat-assisted magnetic recording. A near-field transducer comprising a peg is situated at or near an air bearing surface of the slider, and an optical waveguide of the slider is configured to couple light from a light source to the near-field transducer. The peg comprises a hyperbolic metamaterial, and the near-field transducer may further include an enlarged portion from which the peg extends, where the enlarged portion may also comprise a hyperbolic metamaterial.
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13.发明授权公开(公告)号：US10026421B1
公开(公告)日：2018-07-17
申请号：US15437995
申请日：2017-02-21
Applicant: Seagate Technology LLC
Inventor： Andres David Barbosa Neira , Roberto Fernandez Garcia , Michael James Hardy , Choon How Gan , Mark Anthony Gubbins , Florin Zavaliche , Tong Zhao , Martin Giles Blaber
Abstract: An apparatus comprises a slider configured for heat-assisted magnetic recording. A near-field transducer comprising a peg is situated at or near an air bearing surface of the slider, and an optical waveguide of the slider is configured to couple light from a light source to the near-field transducer. The peg comprises a hyperbolic metamaterial, and the near-field transducer may further include an enlarged portion from which the peg extends, where the enlarged portion may also comprise a hyperbolic metamaterial.
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公开(公告)号：US09734856B2
公开(公告)日：2017-08-15
申请号：US15199668
申请日：2016-06-30
Applicant: Seagate Technology LLC
Inventor： Paul M. Jones , Timothy J. Klemmer , Ruoxi Yang , Martin Giles Blaber , Xiaoding Ma , ZhaoHui Z. Fan , Michael J. Stirniman , Yang Yang , XiaoPing Yan , Fujian Huang , Emil John C. Esmenda , Emir R. Kazazic , Florin Zavaliche , Hongbo Wang , Huan H. Tang , Kyoumarss Damavandi
CPC classification number: G11B5/72 , G11B5/012 , G11B2005/0021
Abstract: Provided herein is an apparatus including a substrate and a magnetic recording layer over the substrate. In addition, a thermochromic layer is over the substrate, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.
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公开(公告)号：US20210366515A1
公开(公告)日：2021-11-25
申请号：US17319444
申请日：2021-05-13
Applicant: Seagate Technology LLC
Inventor： Helene Parwana Habibi , Simon Bance , Martin Liam McGarry , Raul Horacio Andruet , Martin Giles Blaber , Weibin Chen , John Charles Duda , Mark Anthony Gubbins , Erik Jon Hutchinson , Vivek Krishnamurthy , Michael Allen Seigler , Chen Wang
Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.
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Patent Agency Ranking
公开(公告)号：US10510365B2
公开(公告)日：2019-12-17
申请号：US16353702
申请日：2019-03-14
Applicant: Seagate Technology LLC
Abstract: A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer comprises an aperture portion surrounded by walls of plasmonic material, the walls oriented normal to the media-facing surface. A notch protrudes within the aperture. The notch comprises at least one of Rh and Ir. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture.
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公开(公告)号：US10236020B2
公开(公告)日：2019-03-19
申请号：US15980293
申请日：2018-05-15
Applicant: Seagate Technology LLC
Abstract: A recording head includes a near-field transducer proximate a media-facing surface. The near-field transducer comprises an aperture portion surrounded by walls of plasmonic material, the walls oriented normal to the media-facing surface. A notch protrudes within the aperture. The notch comprises at least one of Rh and Ir. A write pole is proximate the near-field transducer. The write pole has a back surface facing away from the media-facing surface and an aperture-facing surface proximate the aperture.
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公开(公告)号：US09984714B2
公开(公告)日：2018-05-29
申请号：US15648042
申请日：2017-07-12
Applicant: Seagate Technology LLC
Inventor： Paul M. Jones , Timothy J. Klemmer , Ruoxi Yang , Martin Giles Blaber , Xiaoding Ma , ZhaoHui Fan , Michael J. Stirniman , Yang Yang , XiaoPing Yan , Fujian Huang , Emil John Catoc Esmenda , Emir R. Kazazic , Florin Zavaliche , Hongbo Wang , Huan H. Tang , Kyoumarss Damavandi
CPC classification number: G11B5/72 , G11B5/012 , G11B2005/0021
Abstract: An apparatus including a heat sink layer and a magnetic recording layer over the heat sink layer. In addition, a thermochromic layer is over the heat sink layer, wherein the thermochromic layer includes a first optical absorbance at a first temperature and a second optical absorbance at a second temperature.
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公开(公告)号：US09934800B1
公开(公告)日：2018-04-03
申请号：US15435583
申请日：2017-02-17
Applicant: Seagate Technology LLC
Inventor： Andres David Barbosa Neira , Roberto Fernandez Garcia , Michael James Hardy , Mark Anthony Gubbins , Martin Giles Blaber
CPC classification number: G11B5/6088 , G11B5/314 , G11B7/126 , G11B11/10506 , G11B11/1051 , G11B2005/0021
Abstract: A waveguide has a first cladding layer surrounding a near-field transducer. A core of the waveguide is disposed on the first cladding layer, and a second cladding layer is disposed on the core opposite the first cladding layer. A coupler is formed of a second plasmonic material and disposed in the waveguide such that a first edge of the coupler is proximate a media-facing surface and a first side of the coupler faces and is spaced apart from a peg of the near-field transducer in a downtrack direction.
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公开(公告)号：US11646058B1
公开(公告)日：2023-05-09
申请号：US17657167
申请日：2022-03-30
Applicant: Seagate Technology LLC
Inventor： Martin Giles Blaber , Michael Allen Siegler , James G Wessel , YuHang Cheng , Scott M Franzen
CPC classification number: G11B13/08 , G11B5/3106 , G11B2005/0021
Abstract: A heat-assisted magnetic recording head includes a near-field transducer, a heat sink, a diffuser, and a diffusion barrier. The near-field transducer is configured to produce a hot spot on a proximate magnetic disk. The heat sink is configured to draw heat away from the near-field transducer. The heat sink is disposed in a down-track direction relative to and coupled to the near-field transducer. The diffuser is configured to draw heat away from the heat sink. The diffuser is disposed in a down-track direction relative to the heat sink. The diffusion barrier includes a metal. The diffusion barrier is disposed between and coupled to the heat sink and the diffuser.
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