Global Patent Index - EP 0988631 A1

EP 0988631 A1 2000-03-29 - LASER ASSISTED TRACK WIDTH DEFINITION AND RADIAL CONTROL WITH MAGNETIC RECORDING

Title (en)

LASER ASSISTED TRACK WIDTH DEFINITION AND RADIAL CONTROL WITH MAGNETIC RECORDING

Title (de)

LASERUNTERSTÜTZTE SPURBREITEDEFINITION UND RADIALSTEUERUNG MIT MAGNETAUFZEICHNUNG

Title (fr)

DETERMINATION DE LARGEUR DE PISTE ASSISTEE PAR LASER ET ASSERVISSEMENT RADIAL AVEC ENREGISTREMENT MAGNETIQUE

Publication

EP 0988631 A1 (EN)

Application

EP 99912937 A

Priority

  • US 9906814 W
  • US 8125398 P
  • US 8207798 P
  • US 11109998 P
  • US 11305998 P
  • US 11509499 P
  • US 11577199 P

Abstract (en)

[origin: WO9953482A1] The present invention provides for the enhancement of the storage capacity of a data disk drive while reducing optical path optics, electronics and/or the mass and complexity of associated read/write heads. The system utilizes light transmitted by optical elements (102, 400) to servo track a data disk (107) and to heat the data disk during reading and writing of data, and magnetic elements for actual reading and writing.

IPC 1-7 (main, further and additional classification)

G11B 5/00; G11B 5/012; G11B 5/596; G11B 5/82

IPC 8 full level (invention and additional information)

G11B 5/64 (2006.01); G11B 5/00 (2006.01); G11B 5/012 (2006.01); G11B 5/02 (2006.01); G11B 5/596 (2006.01); G11B 5/65 (2006.01); G11B 5/73 (2006.01); G11B 5/82 (2006.01); G11B 5/84 (2006.01); G11B 7/24 (2006.01); G11B 7/26 (2006.01); G11B 11/105 (2006.01); G11B 21/10 (2006.01); G11B 23/00 (2006.01)

CPC (invention and additional information)

G11B 5/012 (2013.01); G11B 5/00 (2013.01); G11B 5/596 (2013.01); G11B 5/59677 (2013.01); G11B 5/82 (2013.01); G11B 5/84 (2013.01); G11B 11/1055 (2013.01); G11B 11/10554 (2013.01); G11B 11/10578 (2013.01); G11B 11/10582 (2013.01); G11B 11/10584 (2013.01); G11B 21/106 (2013.01); G11B 23/0021 (2013.01); G11B 23/0057 (2013.01); G11B 11/1058 (2013.01); G11B 2005/0002 (2013.01); G11B 2005/0005 (2013.01); G11B 2005/0021 (2013.01)

Citation (search report)

See references of WO 9953482A1

Designated contracting state (EPC)

DE GB

EPO simple patent family

WO 9953482 A1 19991021; EP 0988631 A1 20000329; EP 1078361 A1 20010228; JP 2002511630 A 20020416; JP 2002512725 A 20020423; JP 2008251157 A 20081016; JP 2012181920 A 20120920; JP 4971245 B2 20120711; WO 9953494 A1 19991021

INPADOC legal status


2005-10-19 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050413

2005-01-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041202

2000-10-25 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SEAGATE TECHNOLOGY LLC

2000-06-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000420

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE GB