CN100382145C - 磁头及包括该磁头的磁记录再现装置 - Google Patents
磁头及包括该磁头的磁记录再现装置 Download PDFInfo
- Publication number
- CN100382145C CN100382145C CNB2005100924797A CN200510092479A CN100382145C CN 100382145 C CN100382145 C CN 100382145C CN B2005100924797 A CNB2005100924797 A CN B2005100924797A CN 200510092479 A CN200510092479 A CN 200510092479A CN 100382145 C CN100382145 C CN 100382145C
- Authority
- CN
- China
- Prior art keywords
- magnetic
- shielding
- magnetic head
- pole
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000696 magnetic material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000000463 material Substances 0.000 description 20
- 230000004907 flux Effects 0.000 description 14
- 238000012217 deletion Methods 0.000 description 10
- 230000037430 deletion Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 5
- 230000035699 permeability Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004301927 | 2004-10-15 | ||
JP2004301927A JP2006114160A (ja) | 2004-10-15 | 2004-10-15 | 磁気ヘッド及びそれを搭載した磁気記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1760978A CN1760978A (zh) | 2006-04-19 |
CN100382145C true CN100382145C (zh) | 2008-04-16 |
Family
ID=35517267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100924797A Expired - Fee Related CN100382145C (zh) | 2004-10-15 | 2005-08-23 | 磁头及包括该磁头的磁记录再现装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7483243B2 (zh) |
EP (1) | EP1647973A3 (zh) |
JP (1) | JP2006114160A (zh) |
KR (1) | KR20060046583A (zh) |
CN (1) | CN100382145C (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006127627A (ja) * | 2004-10-28 | 2006-05-18 | Hitachi Global Storage Technologies Netherlands Bv | 磁気記録再生装置 |
US7616403B2 (en) | 2004-10-29 | 2009-11-10 | Hitachi Global Storage Technologies Netherlands B.V. | Winged design for reducing corner stray magnetic fields |
US7649711B2 (en) | 2004-10-29 | 2010-01-19 | Hitachi Global Storage Technologies Netherlands B.V. | Double notched shield and pole structure for stray field reduction in a magnetic head |
US7813085B2 (en) | 2007-03-30 | 2010-10-12 | Tdk Corporation | Thin-film magnetic head having laminate shields for tolerating external magnetic field |
JP2008299986A (ja) | 2007-06-01 | 2008-12-11 | Tdk Corp | 垂直磁気記録ヘッド |
US9245562B1 (en) | 2015-03-30 | 2016-01-26 | Western Digital (Fremont), Llc | Magnetic recording writer with a composite main pole |
US9576598B1 (en) | 2016-06-30 | 2017-02-21 | Western Digital (Fremont), Llc | Magnetic recording write apparatus having a pole and a magnetic separation layer |
US10468058B1 (en) * | 2018-06-28 | 2019-11-05 | Western Digital Technologies, Inc. | Magnetic write head with a tapered return pole |
US10714128B2 (en) | 2018-10-11 | 2020-07-14 | Western Digital Technologies, Inc. | Magnetic write head with dual return pole |
CN114783466B (zh) * | 2018-11-22 | 2023-10-20 | 新科实业有限公司 | 用于热辅助磁记录的过渡曲率改进的系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000020913A (ja) * | 1998-07-03 | 2000-01-21 | Hitachi Ltd | 磁気ディスク用記録ヘッド |
CN1494057A (zh) * | 2002-09-11 | 2004-05-05 | 西加特技术有限责任公司 | 在写入器间隙具有高磁矩材料的写入磁头写入器及相关工艺 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5075956A (en) * | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
JP2000019033A (ja) | 1998-07-01 | 2000-01-21 | Toyota Central Res & Dev Lab Inc | 磁界検出センサ |
JP2000057522A (ja) * | 1998-08-06 | 2000-02-25 | Tdk Corp | 薄膜磁気ヘッド及びその製造方法 |
JP3909630B2 (ja) * | 1999-03-15 | 2007-04-25 | Tdk株式会社 | 薄膜磁気ヘッド及びその製造方法 |
US6646827B1 (en) * | 2000-01-10 | 2003-11-11 | Seagate Technology Llc | Perpendicular magnetic recording head with write pole which reduces flux antenna effect |
US7100266B2 (en) * | 2001-05-16 | 2006-09-05 | Seagate Technology Llc | Method of forming a beveled writing pole of a perpendicular writing element |
US6859343B1 (en) * | 2002-03-19 | 2005-02-22 | Western Digital, Inc. | Hybrid diffuser for minimizing thermal pole tip protrusion and reader sensor temperature |
JP3687650B2 (ja) * | 2002-12-19 | 2005-08-24 | Tdk株式会社 | 浮上型薄膜磁気ヘッド |
JP4317717B2 (ja) * | 2003-01-22 | 2009-08-19 | 株式会社日立グローバルストレージテクノロジーズ | 垂直記録用薄膜磁気ヘッドを用いた磁気ディスク装置 |
JP4060224B2 (ja) * | 2003-03-31 | 2008-03-12 | 新科實業有限公司 | 薄膜磁気ヘッドの製造方法 |
-
2004
- 2004-10-15 JP JP2004301927A patent/JP2006114160A/ja active Pending
-
2005
- 2005-07-22 KR KR1020050066672A patent/KR20060046583A/ko not_active Application Discontinuation
- 2005-07-22 EP EP05106752A patent/EP1647973A3/en not_active Withdrawn
- 2005-08-23 CN CNB2005100924797A patent/CN100382145C/zh not_active Expired - Fee Related
- 2005-10-17 US US11/252,913 patent/US7483243B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000020913A (ja) * | 1998-07-03 | 2000-01-21 | Hitachi Ltd | 磁気ディスク用記録ヘッド |
CN1494057A (zh) * | 2002-09-11 | 2004-05-05 | 西加特技术有限责任公司 | 在写入器间隙具有高磁矩材料的写入磁头写入器及相关工艺 |
Also Published As
Publication number | Publication date |
---|---|
US20060082931A1 (en) | 2006-04-20 |
US7483243B2 (en) | 2009-01-27 |
CN1760978A (zh) | 2006-04-19 |
EP1647973A3 (en) | 2008-04-09 |
EP1647973A2 (en) | 2006-04-19 |
JP2006114160A (ja) | 2006-04-27 |
KR20060046583A (ko) | 2006-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CI01 | Correction of invention patent gazette |
Correction item: Inventor (third) Correct: Maruyama Yoji False: Maruyama Youji Number: 16 Volume: 22 |
|
CI02 | Correction of invention patent application |
Correction item: Inventor (third) Correct: Maruyama Yoji False: Maruyama Youji Number: 16 Page: The title page Volume: 22 |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR (THIRD); FROM: MARUYAMA YASHI TO: YOJI MARUYAMA |
|
ERR | Gazette correction |
Free format text: CORRECT: INVENTOR (THIRD); FROM: MARUYAMA YASHI TO: YOJI MARUYAMA |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20100823 |