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公开(公告)号：US11289119B1
公开(公告)日：2022-03-29
申请号：US16828030
申请日：2020-03-24
Applicant: Seagate Technology LLC
Inventor： Mourad Benakli , Kirill Alexander Rivkin , Hua Zhou , Martin Giles Blaber , TaeWoo Lee , Michael Allen Seigler , Huaqing Yin
Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. A write pole has a leading edge proximate to and facing the near-field transducer at the media-facing surface. A magnetic shield faces the leading edge of the write pole at the media-facing surface and is magnetically coupled to the write pole. The magnetic shield has a notch centered over the near-field transducer.
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公开(公告)号：US11011201B2
公开(公告)日：2021-05-18
申请号：US16520629
申请日：2019-07-24
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：US20190214041A1
公开(公告)日：2019-07-11
申请号：US16353702
申请日：2019-03-14
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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：US20180261240A1
公开(公告)日：2018-09-13
申请号：US15980293
申请日：2018-05-15
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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：US09972346B2
公开(公告)日：2018-05-15
申请号：US15443188
申请日：2017-02-27
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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：US20180090159A1
公开(公告)日：2018-03-29
申请号：US15828381
申请日：2017-11-30
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Tong Zhao , Yuhang Cheng , Martin Giles Blaber , Jie Gong , Edwin F. Rejda , Michael A. Seigler , Seung-Yeul Yang , Michael Kautzky , Yongjun Zhao , Justin Brons , Andrew J. Boyne , Kurt W. Wierman , Scott Franzen
CPC classification number: G11B5/314 , G11B5/012 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/3967 , G11B5/6088 , G11B2005/0021
Abstract: Devices having an air bearing surface (ABS) and including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg includes a rear peg portion and a peg tip, the rear peg portion and the peg tip are different materials and the peg tip includes: one or more metals; one or more nanoparticles comprising oxides, nitrides, carbides or combinations thereof; one or more conducting oxides, conducting nitrides, conducting bromides, conducting carbides, or combinations thereof; one or more semiconductors; or combinations thereof.
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公开(公告)号：US20170249958A1
公开(公告)日：2017-08-31
申请号：US15443188
申请日：2017-02-27
Applicant: Seagate Technology LLC
CPC classification number: G11B5/314 , G11B5/187 , G11B5/1871 , G11B5/3116 , G11B5/4866 , G11B5/6088 , G11B2005/0021
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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