专利检索 ap:("Kabushiki Kaisha Toshiba" OR "Toshiba Electronic Devices & Storage Corporation") AND inv:"Toshitaka MATSUNAGA" 第 1 页

1.

发明公开
MAGNETIC DISK DEVICE AND SERVO PATTERN WRITE METHOD 审中-公开

公开(公告)号：US20230290374A1

公开(公告)日：2023-09-14

申请号：US17888224

申请日：2022-08-15

申请人： Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation

发明人： Toshitaka MATSUNAGA

IPC分类号： G11B5/596

CPC分类号： G11B5/59661 , G11B5/59666

摘要： According to one embodiment, a magnetic disk device comprises a disk, a head that writes data to the disk and reads data from the disk, and a controller that controls a position of the head so as to write a first spiral servo pattern to the disk, and overwrite a second spiral servo pattern different from the first spiral servo pattern by shifting in a radial direction of the disk from the first spiral servo pattern.