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公开(公告)号：US11422237B2
公开(公告)日：2022-08-23
申请号：US16248555
申请日：2019-01-15
Applicant: Seagate Technology LLC
Inventor： Dan Mohr , Zoran Jandric , Kevin A. Gomez , Raghu Ambekar Ramachandra Rao
Abstract: An apparatus includes a detector and a light source configured to emit light. The apparatus further includes a disk with a set of prisms and that is configured to rotate, arranged to receive and direct the emitted light, and arranged to receive and direct backscattered light. The apparatus further includes a reflecting apparatus with multiple reflective facets and configured to rotate, arranged to reflect the emitted light, and arranged to reflect the backscattered light. A focusing apparatus is arranged to focus the backscattered light from the disk towards the detector.
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公开(公告)号：US11341992B1
公开(公告)日：2022-05-24
申请号：US17170420
申请日：2021-02-08
Applicant: Seagate Technology LLC
Inventor： Aditya Jain , Zoran Jandric
IPC: G11B11/105 , G11B5/48 , G11B20/10 , G11B5/00 , G11B7/126
Abstract: An optical isolator has a first optical property with respect to transmitted components of the light traveling towards a target and a second optical property with respect to reflected components of the light traveling towards the laser. The second optical property suppresses the reflected components of the light. The optical isolator can be used in applications such as heat-assisted magnetic recording and LIDAR.
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公开(公告)号：US10518381B2
公开(公告)日：2019-12-31
申请号：US15635414
申请日：2017-06-28
Applicant: Seagate Technology LLC
Inventor： Gary J. Kunkel , Zoran Jandric
IPC: B24B37/013 , B24B37/04 , G11B5/31 , G11B5/60
Abstract: A method of lapping multiple row bars provided in a stack, including the steps of electrically connecting at least one row bar bond pad of a first row bar to at least one carrier bond pad of a carrier, electrically connecting an outermost row bar of the stack to the first row bar of the stack by at least one electrical trace, wherein the outermost row bar comprises at least one electronic lapping guide, lapping an outer surface of the outermost row bar until a signal provided by the at least one electronic lapping guide of the outermost row bar reaches a predetermined value, terminating the lapping of the outermost row bar, and removing the outermost row bar from the stack to expose a second row bar, wherein the second row bar is electrically connected to the first row bar with the at least one electrical trace.
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公开(公告)号：US09837112B2
公开(公告)日：2017-12-05
申请号：US14709705
申请日：2015-05-12
Applicant: Seagate Technology LLC
Inventor： Ruoxi Yang , James Gary Wessel , Rachel Frakie , Chubing Peng , Werner Scholz , Chris Rea , Zoran Jandric , Mourad Benakli , Tae-Woo Lee
CPC classification number: G11B5/6088 , G02B6/02042 , G02B6/02052 , G02B6/1226 , G02B2006/12121 , G11B5/3133 , G11B5/314 , G11B5/4866 , G11B7/24062 , G11B2005/0021
Abstract: An apparatus is includes a near field transducer positioned adjacent a media-facing surface and at the end of a waveguide having at least one core layer and a cladding layer. The apparatus also includes at least one optical reflector positioned adjacent opposing cross-track edges of the near field transducer and/or adjacent a down-track side of the near-field transducer.
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15.发明授权公开(公告)号：US09153276B2
公开(公告)日：2015-10-06
申请号：US13954142
申请日：2013-07-30
Applicant: Seagate Technology LLC
Inventor： Michael Thomas Johnson , Manuel Charles Anaya-Dufresne , Zoran Jandric
IPC: G11B11/00 , G11B13/08 , G11B11/105
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/3136 , G11B5/40 , G11B5/455 , G11B5/607 , G11B11/10515 , G11B11/10595 , G11B13/08 , G11B2005/0021
Abstract: A light source is configured to produce light, a waveguide is optically coupled to the light source and configured to direct the light to an intended focus location, and a slider is configured to use the light as an energy source for heating a region of a magnetic recording medium. A thermal sensor is situated on the slider at a location outside of a light path that includes the intended focus location. The thermal sensor is configured for sensing a short time constant change in temperature resulting from light source heating of the thermal sensor, wherein the sensed change in thermal sensor temperature is representative of optical intensity of the light delivered to the intended focus location.
Abstract translation: 光源被配置为产生光，波导光学耦合到光源并且被配置为将光引导到预期的焦点位置，并且滑块被配置为使用光作为加热磁性区域的能量源 记录介质。 热传感器位于包括预期焦点位置的光路外部位置的滑块上。 热传感器被配置用于感测由热传感器的光源加热引起的短时间恒定温度变化，其中感测到的热传感器温度的变化代表传送到预期焦点位置的光的光强度。
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Patent Agency Ranking
公开(公告)号：US11747569B2
公开(公告)日：2023-09-05
申请号：US17504065
申请日：2021-10-18
Applicant: Seagate Technology LLC
Inventor： Zoran Jandric , Kevin A. Gomez , Dan Mohr , Anil J. Reddy , Aditya Jain , Krishnan Subramanian
CPC classification number: G02B6/3536 , G02B6/26 , G02B6/3504 , G02B6/356
Abstract: Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.
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公开(公告)号：US20220276353A1
公开(公告)日：2022-09-01
申请号：US17747823
申请日：2022-05-18
Applicant: Seagate Technology LLC
Inventor： Dan Mohr , Zoran Jandric , Kevin A. Gomez , Raghu Ambekar Ramachandra Rao
Abstract: An apparatus includes a detector and a light source configured to emit light. The apparatus further includes a disk with a set of prisms and that is configured to rotate, arranged to receive and direct the emitted light, and arranged to receive and direct backscattered light. The apparatus further includes a reflecting apparatus with multiple reflective facets and configured to rotate, arranged to reflect the emitted light, and arranged to reflect the backscattered light. A focusing apparatus is arranged to focus the backscattered light from the disk towards the detector.
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公开(公告)号：US20200371208A1
公开(公告)日：2020-11-26
申请号：US16721598
申请日：2019-12-19
Applicant: Seagate Technology LLC
Inventor： Aditya Jain , Zoran Jandric , Krishnan Subramanian
Abstract: A device includes a light splitter configured to receive a source light beam from a light source and split the source light beam into separate light beams, each emitted through an outlet. The device also includes resonators, each of which is optically coupled to at least one of the outlets and is configured to steer at least one of the light beams.
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公开(公告)号：US20200225328A1
公开(公告)日：2020-07-16
申请号：US16248555
申请日：2019-01-15
Applicant: Seagate Technology LLC
Inventor： Dan Mohr , Zoran Jandric , Kevin A. Gomez , Raghu Ambekar Ramachandra Rao
Abstract: An apparatus includes a detector and a light source configured to emit light. The apparatus further includes a disk with a set of prisms and that is configured to rotate, arranged to receive and direct the emitted light, and arranged to receive and direct backscattered light. The apparatus further includes a reflecting apparatus with multiple reflective facets and configured to rotate, arranged to reflect the emitted light, and arranged to reflect the backscattered light. A focusing apparatus is arranged to focus the backscattered light from the disk towards the detector.
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公开(公告)号：US09959893B1
公开(公告)日：2018-05-01
申请号：US15657746
申请日：2017-07-24
Applicant: Seagate Technology LLC
Inventor： John Charles Duda , Zoran Jandric
CPC classification number: G11B5/6082 , G11B5/314 , G11B5/455 , G11B5/4866 , G11B5/607 , G11B5/6076 , G11B5/6088 , G11B2005/0021
Abstract: An apparatus comprises a slider having an air bearing surface (ABS) and a near-field transducer (NFT) at or near the ABS. An optical waveguide is configured to couple light from a laser source to the NFT. A resistive sensor comprises an ABS section situated at or proximate the ABS and a distal section extending away from the ABS to a location at least lateral of or behind the NFT. The resistive sensor is configured to detect changes in output optical power of the laser source and contact between the slider and a magnetic recording medium.
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