Global patent index - EP 1078361 A1

EP 1078361 A1 2001-02-28 - STORAGE DISK COMPRISING DEPRESSIONS AND/OR RAISED FEATURES

Title (en)

STORAGE DISK COMPRISING DEPRESSIONS AND/OR RAISED FEATURES

Title (de)

SPEICHERPLATTE MIT VERTIEFUNGEN UND/ODER ERHABENEN MERKMALEN

Title (fr)

DISQUE DE MEMORISATION COMPRENANT DES DEPRESSIONS ET/OU DES STRUCTURES SURELEVEES

Publication

EP 1078361 A1 (EN)

Application

EP 99914243 A

Priority

  • US 9906809 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 23/00; G11B 5/596; G11B 5/82; G11B 5/84; G11B 21/10

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 9953494A1

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

2007-11-16 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Legal Event Code: WD

- Ref Document Number: 1035253

- Country of Ref Document: HK

2005-08-24 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050212

2004-11-17 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20041001

2001-02-28 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001023

2001-02-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE GB