WO2002082431A3 - Perpendicular magnetic recording head with soft underlayer biasing - Google Patents
Perpendicular magnetic recording head with soft underlayer biasing Download PDFInfo
- Publication number
- WO2002082431A3 WO2002082431A3 PCT/US2002/009958 US0209958W WO02082431A3 WO 2002082431 A3 WO2002082431 A3 WO 2002082431A3 US 0209958 W US0209958 W US 0209958W WO 02082431 A3 WO02082431 A3 WO 02082431A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- recording head
- biasing
- magnetic field
- magnetic recording
- perpendicular magnetic
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/03—Biasing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
- G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
- G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0026—Pulse recording
- G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Magnetic Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002250478A AU2002250478A1 (en) | 2001-04-04 | 2002-03-28 | Perpendicular magnetic recording head with soft underlayer biasing |
KR10-2003-7012982A KR20040052495A (en) | 2001-04-04 | 2002-03-28 | Perpendicular magnetic recording head with soft underlayer biasing |
GB0324786A GB2392299B (en) | 2001-04-04 | 2002-03-28 | Perpendicular magnetic recording head with soft underlayer biasing |
JP2002580316A JP2005509990A (en) | 2001-04-04 | 2002-03-28 | Perpendicular magnetic recording head biased on soft underlayer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28143001P | 2001-04-04 | 2001-04-04 | |
US60/281,430 | 2001-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002082431A2 WO2002082431A2 (en) | 2002-10-17 |
WO2002082431A3 true WO2002082431A3 (en) | 2002-12-19 |
Family
ID=23077258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/009958 WO2002082431A2 (en) | 2001-04-04 | 2002-03-28 | Perpendicular magnetic recording head with soft underlayer biasing |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2005509990A (en) |
KR (1) | KR20040052495A (en) |
CN (1) | CN1511314A (en) |
AU (1) | AU2002250478A1 (en) |
GB (1) | GB2392299B (en) |
WO (1) | WO2002082431A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9318131B2 (en) * | 2013-06-28 | 2016-04-19 | Seagate Technology Llc | Write gap structure for a magnetic recording head |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486967A (en) * | 1993-03-15 | 1996-01-23 | Kabushiki Kaisha Toshiba | Magnetic disk memory system |
US5636093A (en) * | 1994-10-05 | 1997-06-03 | U.S. Philips Corporation | Magnetic multilayer device having resonant-tunneling double-barrier structure |
US5695864A (en) * | 1995-09-28 | 1997-12-09 | International Business Machines Corporation | Electronic device using magnetic components |
US5815342A (en) * | 1992-07-13 | 1998-09-29 | Kabushiki Kaisha Toshiba | Perpendicular magnetic recording/reproducing apparatus |
US6188549B1 (en) * | 1997-12-10 | 2001-02-13 | Read-Rite Corporation | Magnetoresistive read/write head with high-performance gap layers |
-
2002
- 2002-03-28 KR KR10-2003-7012982A patent/KR20040052495A/en not_active Application Discontinuation
- 2002-03-28 CN CNA028077458A patent/CN1511314A/en active Pending
- 2002-03-28 JP JP2002580316A patent/JP2005509990A/en not_active Abandoned
- 2002-03-28 GB GB0324786A patent/GB2392299B/en not_active Expired - Fee Related
- 2002-03-28 WO PCT/US2002/009958 patent/WO2002082431A2/en active Application Filing
- 2002-03-28 AU AU2002250478A patent/AU2002250478A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5815342A (en) * | 1992-07-13 | 1998-09-29 | Kabushiki Kaisha Toshiba | Perpendicular magnetic recording/reproducing apparatus |
US5486967A (en) * | 1993-03-15 | 1996-01-23 | Kabushiki Kaisha Toshiba | Magnetic disk memory system |
US5636093A (en) * | 1994-10-05 | 1997-06-03 | U.S. Philips Corporation | Magnetic multilayer device having resonant-tunneling double-barrier structure |
US5695864A (en) * | 1995-09-28 | 1997-12-09 | International Business Machines Corporation | Electronic device using magnetic components |
US6188549B1 (en) * | 1997-12-10 | 2001-02-13 | Read-Rite Corporation | Magnetoresistive read/write head with high-performance gap layers |
Also Published As
Publication number | Publication date |
---|---|
KR20040052495A (en) | 2004-06-23 |
CN1511314A (en) | 2004-07-07 |
GB2392299A (en) | 2004-02-25 |
GB2392299B (en) | 2005-04-27 |
GB0324786D0 (en) | 2003-11-26 |
JP2005509990A (en) | 2005-04-14 |
WO2002082431A2 (en) | 2002-10-17 |
AU2002250478A1 (en) | 2002-10-21 |
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