Global Patent Index - EP 1653448 A9

EP 1653448 A9 2007-10-03 - Winged design for reducing corner stray magnetic fields

Title (en)

Winged design for reducing corner stray magnetic fields

Title (de)

Flügelartige Ausformung zur Verringerung von Streufeldern an Kanten

Title (fr)

Structure en forme d'ailes pour réduire le champ dispersif le long des arêtes

Publication

EP 1653448 A9 (EN)

Application

EP 05254250 A

Priority

US 97731504 A

Abstract (en)

[origin: EP1653448A2] Embodiments of the present invention are directed to structures of a recording head having a winged design for reducing corner stray magnetic fields. In one embodiment, the present invention comprises a magnetic recording head comprising a plurality of components. In embodiments of the present invention at least one of the plurality of components comprises a surface exposed to an air bearing surface when in operation with a recording medium. The surface exposed to the air bearing surface comprises notched edges for constraining corner stray magnetic fields associated therewith.

IPC 8 full level (invention and additional information)

G11B 5/127 (2006.01)

CPC (invention and additional information)

G11B 5/1278 (2013.01); G11B 5/3116 (2013.01); G11B 5/315 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

EP 1653448 A2 20060503; EP 1653448 A3 20071128; EP 1653448 A9 20071003; CN 1766997 A 20060503; US 2006092562 A1 20060504; US 7616403 B2 20091110

INPADOC legal status


2009-11-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20090428

2008-08-06 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE FR GB

2008-07-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080602

2008-05-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20080417

2007-11-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2007-11-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK YU

2007-11-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G11B 5/127 20060101AFI20060227BHEP

2007-11-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G11B 5/39 20060101ALI20071019BHEP

2006-05-03 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2006-05-03 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK YU