公开(公告)号：US11468909B1

公开(公告)日：2022-10-11

申请号：US17517061

申请日：2021-11-02

Applicant: Seagate Technology LLC

Inventor： Cho Kok Liang ,  Xiong Liu ,  Than Zaw Myint ,  Yichao Ma

IPC: G11B5/48

Abstract: A data storage device includes a base, a data storage disk, an actuator arm, a suspension, and a piezoelectric actuator. The data storage disk is attached to the base and has a read/write surface defining an x-y plane. The actuator arm is attached to the base at a first pivot point to rotate parallel to the x-y plane. The suspension is attached to the actuator arm at a second pivot point, the suspension having a first end comprising a curved edge surface, and a second end supporting a head that is configured to interact with the read/write surface. The piezoelectric actuator is disposed on the actuator arm and comprises a biasing finger configured to contact the curved edge surface to rotate the suspension parallel to the x-y plane about the second pivot point. An actuator arm assembly and a method of use are also described.

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：US11587596B2

公开(公告)日：2023-02-21

申请号：US17072389

申请日：2020-10-16

Applicant: Seagate Technology LLC

Inventor： Chee Yin Chan ,  Wei Leng Tee ,  Than Zaw Myint

IPC: G11B33/14

Abstract: A hard disk drive includes a base deck and a cover. The cover is coupled to the base deck to create an enclosure. The hard disk drive also includes tape that covers at least a portion of the cover and the base deck. The tape includes an adhesive layer, which includes an adhesive material and a moisture-absorbent material.

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：US20220118400A1

公开(公告)日：2022-04-21

申请号：US17072389

申请日：2020-10-16

Applicant: Seagate Technology LLC

Inventor： Chee Yin Chan ,  Wei Leng Tee ,  Than Zaw Myint

IPC: B01D53/28 ,  B01D53/26

Abstract: A hard disk drive includes a base deck and a cover. The cover is coupled to the base deck to create an enclosure. The hard disk drive also includes tape that covers at least a portion of the cover and the base deck. The tape includes an adhesive layer, which includes an adhesive material and a moisture-absorbent material.

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.