公开(公告)号：US11783858B2

公开(公告)日：2023-10-10

申请号：US17569422

申请日：2022-01-05

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC: G11B21/22 ,  G11B5/54 ,  F03G7/06 ,  G11B5/48 ,  G11B5/55

CPC classification number: G11B21/22 ,  F03G7/064 ,  F03G7/06143 ,  G11B5/54 ,  G11B5/4873 ,  G11B5/5573

Abstract: A device disclosed herein includes an upper shape memory alloy (SMA) wire, a lower SMA wire, a flexure having an opening, and a spring configured within the flexure opening, wherein the lower SMA wire, and the flexure are attached at one end to an anchor and at another end to a pin.

公开(公告)号：US20230318257A1

公开(公告)日：2023-10-05

申请号：US17657164

申请日：2022-03-30

Applicant: Seagate Technology LLC

Inventor： Fadi El Hallak ,  Bryn John Howells ,  Michael Gerald Boyle ,  Frank Anthony McGinnity ,  Martin Liam McGarry

IPC: H01S5/024 ,  H01S5/026

CPC classification number: H01S5/02476 ,  H01S5/026 ,  G11B2005/0021

Abstract: A method comprising the steps of forming a recording head comprising a waveguide, a heat sink and a bleed resistor on a first substrate, is described. The bleed resistor is coupled to the heat sink and the substrate. The top surface of the heat sink is planarized to form a planarized heat sink. A laser diode formed on a second substrate is transfer printed onto the planarized heat sink to form an integrated laser diode.

公开(公告)号：US11763846B2

公开(公告)日：2023-09-19

申请号：US17467783

申请日：2021-09-07

Applicant: Seagate Technology LLC

Inventor： Zhuoyuan Wu ,  Edwin F. Rejda ,  Richard T. Greenlee

IPC: G11B5/72 ,  G11B5/31 ,  G11B5/255 ,  G11B5/00

CPC classification number: G11B5/72 ,  G11B5/255 ,  G11B5/314 ,  G11B5/3106 ,  G11B5/3163 ,  G11B2005/0021 ,  Y10T428/1164

Abstract: Described are magnetic recording heads that include an overcoat that includes a titanium oxynitride (TiON) layer.

公开(公告)号：US11763845B2

公开(公告)日：2023-09-19

申请号：US17554341

申请日：2021-12-17

Applicant: Seagate Technology LLC

Inventor： Florin Zavaliche ,  Kai Chieh Chang ,  Pin-Wei Huang ,  Ganping Ju ,  Jan-Ulrich Thiele

IPC: G11B5/716 ,  G11B5/65 ,  G11B5/73

CPC classification number: G11B5/716 ,  G11B5/657 ,  G11B5/7369 ,  G11B5/7379

Abstract: A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.

公开(公告)号：US11749301B2

公开(公告)日：2023-09-05

申请号：US17401081

申请日：2021-08-12

Applicant: Seagate Technology LLC

Inventor： Amy Jo Bergerud ,  Andrew Joseph Boyne ,  Daniel Richard Buettner ,  Kurt W. Wierman ,  Joel W. Hoehn

IPC: G11B5/127 ,  H04R31/00 ,  G11B5/31 ,  G11B5/48

CPC classification number: G11B5/3169 ,  G11B5/3116 ,  G11B5/4826

Abstract: The present disclosure includes methods of using a sacrificial, protective head overcoat during the manufacture of sliders. In some embodiments, the final trailing edge topography of the transducer devices is formed before applying the sacrificial, protective head overcoat. In some embodiments, the final trailing edge topography of the transducer devices is formed after removing the sacrificial, protective head overcoat.

公开(公告)号：US20230267952A1

公开(公告)日：2023-08-24

申请号：US17675367

申请日：2022-02-18

Applicant: Seagate Technology LLC

Inventor： Lihong Zhang ,  Xiong Liu

IPC: G11B5/024 ,  G11B5/09 ,  G11B5/55 ,  G11B5/325

CPC classification number: G11B5/024 ,  G11B5/09 ,  G11B5/5521 ,  G11B5/325

Abstract: A recording head has a magnetic write transducer having a first crosstrack width operable to write a single track of data at a time to a magnetic disk. The recording head also has a magnetic erase transducer separate from the magnetic write transducer. The magnetic erase transducer has a second crosstrack width operable to simultaneously erase multiple tracks of data at from the magnetic disk

公开(公告)号：US20230266919A1

公开(公告)日：2023-08-24

申请号：US17675533

申请日：2022-02-18

Applicant: Seagate Technology LLC

Inventor： Shankar Tukaram More ,  Vidyadhar Charudatt Pinglikar

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0622 ,  G06F3/0679 ,  G06F3/0676

Abstract: A storage command is received from a client computer. The storage command includes a key associated with a content object that is to be written to two or more storage nodes in response to the command. A virtual address space is used to indicate a storage location of the content object. A virtual address of the virtual address space is assigned to the content object. The content object is redundantly stored the two or more storage nodes at respective two or more device addresses of the respective two or more storage nodes. The two or more device addresses are mapped to the virtual address, and the virtual address is returned to the client computer as a hint.

公开(公告)号：US11737245B2

公开(公告)日：2023-08-22

申请号：US16795859

申请日：2020-02-20

Applicant: Seagate Technology LLC

Inventor： Angel Castillo de la Cruz

IPC: H05K7/20 ,  F04D17/16 ,  F04D29/42 ,  F04D27/00

CPC classification number: H05K7/20736 ,  F04D17/16 ,  F04D27/002 ,  F04D29/4213 ,  H05K7/20136 ,  H05K7/20145 ,  H05K7/20181 ,  H05K7/20563

Abstract: A cooling assembly includes an air mover and a vent panel coupled to the air mover. The vent panel includes an inlet. The cooling assembly includes a vane that is rotatable around a central vertical axis of the vane between an open position and a closed position to open and close the inlet.

公开(公告)号：US20230244669A1

公开(公告)日：2023-08-03

申请号：US17587271

申请日：2022-01-28

Applicant: Seagate Technology LLC

Inventor： Sining Wu

IPC: G06F16/2455 ,  G06F16/22

CPC classification number: G06F16/24553 ,  G06F16/2246

Abstract: A query is received in a distributed storage system that asks for frequently accessed items of a select storage tier in a service store. The query is executed on at least one data summary structure maintained by a client node that corresponds with the select storage tier in the service store. Each data summary structure maintained by the client node summarizes a data stream of item access of the select storage tier during a period of time and different data summary structures from different periods of time are periodically merged so that the query is conducted on a merged data summary structure maintained by the client node. A result is returned from the executed query that is indicative of frequently accessed items of the select storage tier in the service store.

公开(公告)号：US20230244637A1

公开(公告)日：2023-08-03

申请号：US17587281

申请日：2022-01-28

Applicant: Seagate Technology LLC

Inventor： Sining Wu

IPC: G06F16/14 ,  G06F16/16 ,  G06F16/13

CPC classification number: G06F16/156 ,  G06F16/164 ,  G06F16/137

Abstract: A metadata query is received in as storage system from a client node that asks one or more questions regarding a set of metadata in a metadata store. The metadata query is executed on at least one metadata summary structure. Each metadata summary structure summarizes a metadata stream of metadata access during a period of time, and different metadata summary structures from different periods of time are periodically merged together so that the metadata query is conducted on a merged metadata summary structure. An answer is returned from the query executed on the merged metadata summary structure.