公开(公告)号：JPH08263937A

公开(公告)日：1996-10-11

申请号：JP3475896

申请日：1996-02-22

Applicant: IBM

Inventor： TEIMOSHII JIYOSEFU CHIEINAA ,  DEIIN EI HAAMAN JIYUNIA ,  SORU RONGERUBU ,  RUBOMIIRU TARASU ROMANKIU ,  EDOWAADO JIYON YARUMUCHIYAKU

IPC: G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  H02K21/24

Abstract: PROBLEM TO BE SOLVED: To attain data write and read between a data storage magnetic disk and a stator having plural stator magnetic poles by including a data storage magnetic disk in which an integrated assembly between a data disk and a disk drive is supported rotatably. SOLUTION: A micro file 10 includes a magnetic storage disk 12 supported turnably and stores information in binary data bits. Each micro motor 14 is integrated with the disk 12, includes a rotor 16 integrated with the disk 12 as a one-piece assembly to drive the disk 12. The rotor 16 is extended radially outward and includes plural rotor magnetic poles 18 around the extended part of the rotor 16. Each micro motor 14 is provided with a stator 20 having plural stator magnetic poles 22 to be arranged on a circumference around the rotor 16 at an interval, to drive the rotor 16 in cooperation with each rotor pole 18 sequentially, to drive the disk 12 to allow an access head assembly 24 to write/read magnetically data.

公开(公告)号：JP2002136085A

公开(公告)日：2002-05-10

申请号：JP2001254057

申请日：2001-08-24

Applicant: IBM

Inventor： CHAINER TIMOTHY JOSEPH ,  HERMAN DEAN A JR ,  KRONGELB SOL ,  ROMANKIW LUBOMYR TARAS ,  EDOWAADO JIYON YARUMUCHIYAKU

IPC: G11B19/20 ,  G11B25/04 ,  G11B33/12 ,  H02K21/24

Abstract: PROBLEM TO BE SOLVED: To provide an integrated assembly of a data disk and a disk drive. SOLUTION: The assembly includes the magnetic disk for data memory, which is supported rotatable. A rotor including a plurality of rotor poles is fitted and fixed to the disk for rotating the disk. A stator disposed with a plurality of stator poles around the rotor is used for rotating the disk by rotating the rotor in turn connecting to each rotor pole. The disk and the drive can be formed by lithography or electroplate coating, and in a typical practiced case a plurality of coaxial disks can be driven by one disk drive.

公开(公告)号：JPH1050014A

公开(公告)日：1998-02-20

申请号：JP12360197

申请日：1997-05-14

Applicant: IBM

Inventor： CHAINER TIMOTHY JOSEPH ,  MAAKU DERORUMAN SUKARUTSU ,  BATSUKUNERU CHIYAPUMAN UEBU ,  EDOWAADO JIYON YARUMUCHIYAKU

IPC: G11B5/48 ,  G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G11B21/10 ,  G11B27/30

Abstract: PROBLEM TO BE SOLVED: To reduce the necessity of a complicated positioning system by preventing a 1st track from being immediately precedent to a 2nd track at the time of writing a 2nd propagation burst in the 2nd track while control is performed to a 1st propagation burst. SOLUTION: When a min. moving distance exceeds a servo track interval, this is attained by combining a larger forward moving step and a smaller backward moving step of propagation of a head than that shown in the figure. In each step with a dotted line in the figure shows for a self-servo writing process that the head is servo-controlled to the 1st propagation burst and is in a point of writing the 2nd propagation burst. A product servo pattern is shown as a continuous vertical line of data on the left side of the figure. The propagation bursts are shown with labels n, n+1,... in the middle. At the step 1, the propagation burst n is written, whereas the propagation burst n+2 is written by subsequent servo control on outer side edge of the burst (n).