公开(公告)号：US20200034118A1

公开(公告)日：2020-01-30

申请号：US16589660

申请日：2019-10-01

Applicant: Seagate Technology LLC

Inventor： Li Hong Zhang ,  WenXiang Xie ,  Xiong Liu

IPC: G06F7/58 ,  G11B7/13

Abstract: A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.

公开(公告)号：US10510378B1

公开(公告)日：2019-12-17

申请号：US16198467

申请日：2018-11-21

Applicant: Seagate Technology LLC

Inventor： YiChao Ma ,  Xiong Liu ,  Li Hong Zhang

IPC: G11B33/02

Abstract: Provided herein is an apparatus including a hard drive base. A number of disks are rotatably connected to the hard drive base, and there are a number of disk gaps between the disks. A shroud extends in a circumferential span around the disks, wherein the shroud extends less than the circumference of the disks. The shroud is positioned between the disk gaps and an upwardly sloping gas channel. A number of arcuate gas channels are in the shroud, wherein each arcuate gas channel is horizontally aligned with a corresponding disk gap. The arcuate gas channels connect the disk gaps to the upwardly sloping gas channel.

公开(公告)号：US10115436B1

公开(公告)日：2018-10-30

申请号：US15627856

申请日：2017-06-20

Applicant: Seagate Technology LLC

Inventor： Li Hong Zhang ,  Xiong Liu ,  Swee Chuan Gan

IPC: G11B33/14 ,  G11B25/04 ,  B32B9/00 ,  B82Y30/00 ,  B32B37/18

Abstract: Described are filters useful in a hard disk drive of a comparable electronic device that requires a highly contaminant-free environment for operation, particularly to these devices in combination with the filter, wherein the filter contains graphene.