公开(公告)号：US20240412762A1

公开(公告)日：2024-12-12

申请号：US18738316

申请日：2024-06-10

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Barish Chakravarty

IPC: G11B21/12

Abstract: An apparatus includes a linear actuator assembly with a rail, a carriage, and a piezoelectric actuator. The carriage is coupled to the rail such that the carriage is movable with respect to the rail, and the piezoelectric actuator is configured and arranged to cause the carriage to move linearly between ends of the rail.

公开(公告)号：US20240420734A1

公开(公告)日：2024-12-19

申请号：US18603453

申请日：2024-03-13

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Than Zaw Myint ,  Brendon Shi Wei Leong

IPC: G11B5/48 ,  G11B5/53

Abstract: An apparatus includes a data storage disc having a read/write surface, and an arm extending along an arm axis and having a head end that supports a head that is configured to interact with the read/write surface. The apparatus also includes a rail extending along a rail axis that is normal to the arm axis, and a carriage coupled to the arm and movably coupled to the rail. The apparatus further includes a latch mechanism configured to releasably hold the carriage to the rail at a fixed position.

公开(公告)号：US20210295871A1

公开(公告)日：2021-09-23

申请号：US16826680

申请日：2020-03-23

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Pow Hing Yong

IPC: G11B23/03 ,  G11B5/55

Abstract: A load/unload ramp includes a body with ramps, load/unload surfaces, and a vertical wall. The ramps include outer grooves positioned between the ramps. The load/unload surfaces extend from the respective ramps. The vertical wall includes channels extending through the vertical wall. In embodiments, the channels are positioned between the load/unload surfaces.

公开(公告)号：US11031048B1

公开(公告)日：2021-06-08

申请号：US16257796

申请日：2019-01-25

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Christopher M. Woldemar ,  Lionel Young ,  Iraj Jabbari

IPC: G11B33/14 ,  G11B33/02 ,  B23K20/12 ,  G11B25/04 ,  G11B33/12

Abstract: Described are enclosures for electronic devices; the enclosures include a cover, a base, and a snap-fit engagement between the cover and the base; also described are methods of preparing the devices.

公开(公告)号：US20240221780A1

公开(公告)日：2024-07-04

申请号：US18530600

申请日：2023-12-06

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Choon Kiat Lim ,  Than Zaw Myint

IPC: G11B5/48 ,  G11B21/12

CPC classification number: G11B5/48 ,  G11B21/12

Abstract: A data storage device includes a data storage disk, an arm, a first head, an elevator, and a sleeve. The data storage disk has a first read/write surface defining an x-y plane. The arm is attached to a pivot block, wherein the arm is movable relative to the disk. The first head is supported by the arm, wherein the first head is configured to interact with the first read/write surface. The elevator is configured to move the arm in a z direction, wherein the elevator comprises a stepper motor, a gear train, and a lead screw. The sleeve partially encases the lead screw. In another aspect, a data storage device includes a data storage disk, an arm, a first head, an elevator, and a housing encasing the gear train and attached to the pivot block.

公开(公告)号：US11341993B2

公开(公告)日：2022-05-24

申请号：US16826680

申请日：2020-03-23

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Pow Hing Yong

IPC: G11B5/54 ,  G11B21/22 ,  G11B21/12 ,  G11B25/04 ,  G11B23/03 ,  G11B5/55

Abstract: A load/unload ramp includes a body with ramps, load/unload surfaces, and a vertical wall. The ramps include outer grooves positioned between the ramps. The load/unload surfaces extend from the respective ramps. The vertical wall includes channels extending through the vertical wall. In embodiments, the channels are positioned between the load/unload surfaces.

公开(公告)号：US11727957B1

公开(公告)日：2023-08-15

申请号：US17837185

申请日：2022-06-10

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Than Zaw Myint ,  Choon Kiat Lim

IPC: G11B5/48 ,  G11B21/22

CPC classification number: G11B5/4873 ,  G11B21/22

Abstract: A data storage device includes a stack of discs mounted on a spindle and a pivot block rotatably mounted around a shaft. The data storage device also includes an arm having first and second ends, with the first end supporting a head and the second end movably attached to the pivot block. The data storage device further includes an ultrasonic piezoelectric actuator that moves the arm along the pivot block to enable the head to interact with data storage surfaces of the discs.

公开(公告)号：US11488624B1

公开(公告)日：2022-11-01

申请号：US17479679

申请日：2021-09-20

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  YiChao Ma ,  Than Zaw Myint ,  YongJie Tang

IPC: G11B5/48 ,  G11B5/55

Abstract: An exemplary data storage device includes an actuator arm assembly, a top guide rail, a bottom guide rail, and a first ball bearing. The actuator arm assembly includes a first post defining a pivot axis that is inclined between about 5 degrees and about 25 degrees from a horizontal plane defined by a data storage disk surface. The top guide rail includes a first rolling surface that is parallel to the pivot axis. The bottom guide rail is spaced from the top guide rail and includes a second rolling surface that is parallel to the first rolling surface. The first ball bearing includes a first inner race and a first outer race, the first inner race surrounding the first post, and the first outer race in contact with the first rolling surface or the second rolling surface. An exemplary method of assembling a data storage device is also described.

公开(公告)号：US20190341080A1

公开(公告)日：2019-11-07

申请号：US15970758

申请日：2018-05-03

Applicant: Seagate Technology LLC

Inventor： Christopher M. Woldemar ,  YiChao Ma ,  Xiong Liu ,  Li Hong Zhang

IPC: G11B33/14 ,  G11B33/12 ,  G11B33/02

Abstract: A storage container includes a base housing member coupled to an inner cover and including an inner cavity. The storage container further includes an outer cover coupled to the base housing member and covering the inner cover. A rack assembly includes a plurality of storage devices and is mounted within the inner cavity.

公开(公告)号：US11430472B1

公开(公告)日：2022-08-30

申请号：US17528296

申请日：2021-11-17

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Gordon Harwood ,  Yongjie Tang

IPC: G11B5/39 ,  G11B5/48 ,  H02K41/035

Abstract: A data storage device includes a ferromagnetic center pole, a drive coil for an actuator arm assembly, and a magnetic assembly surrounding the drive coil. The drive coil surrounds the center pole and has a top, a bottom, and first and second sides; the first side is attached to the actuator arm assembly. The magnetic assembly includes a top magnet disposed above and spaced from the center pole, a bottom magnet disposed below and spaced from the center pole, and a side magnet disposed proximate the second side of the coil and spaced from the center pole. In another embodiment, a linear actuator comprises a ferromagnetic center pole, a drive coil supported for linear motion on a rail, and a magnetic assembly. A method including linearly moving a drive coil along a center pole by a magnetic field is also described.