DE69204869D1 - Dünnschichtmagnetkopf. - Google Patents

Dünnschichtmagnetkopf.

Info

Publication number: DE69204869D1
Authority: DE; Germany
Prior art keywords: thin film; magnetic head; film magnetic; head; thin
Prior art date: 1991-02-27
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

Application number

DE69204869T

Other languages

English (en)

Other versions

DE69204869T2 (de

Inventor

Robert Edward Fontana

Lubomyr Taras Romankiw

Mason Lamar Williams

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

Priority date (The priority date 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 date listed.)

1991-02-27

Filing date

1992-01-16

Publication date

1995-10-26

1992-01-16 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1995-10-26 Application granted granted Critical

1995-10-26 Publication of DE69204869D1 publication Critical patent/DE69204869D1/de

1996-05-02 Publication of DE69204869T2 publication Critical patent/DE69204869T2/de

2012-01-17 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- G11B5/33—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
- G11B5/3903—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 using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Magnetic Heads (AREA)

DE69204869T 1991-02-27 1992-01-16 Dünnschichtmagnetkopf. Expired - Fee Related DE69204869T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/661,797 US5164869A (en)	1991-02-27	1991-02-27	Magnetic recording head with integrated magnetoresistive element and open yoke

Publications (2)

Publication Number	Publication Date
DE69204869D1 true DE69204869D1 (de)	1995-10-26
DE69204869T2 DE69204869T2 (de)	1996-05-02

Family

ID=24655159

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69204869T Expired - Fee Related DE69204869T2 (de)	1991-02-27	1992-01-16	Dünnschichtmagnetkopf.

Country Status (4)

Country	Link
US (1)	US5164869A (de)
EP (1)	EP0501603B1 (de)
JP (1)	JP2500970B2 (de)
DE (1)	DE69204869T2 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6600631B1 (en) *	1989-11-27	2003-07-29	Censtor Corp.	Transducer/flexure/conductor structure for electromagnetic read/write system
US5490027A (en) *	1991-10-28	1996-02-06	Censtor Corp.	Gimbaled micro-head/flexure/conductor assembly and system
JPH04362505A (ja) *	1991-02-27	1992-12-15	Internatl Business Mach Corp <Ibm>	薄膜磁気読み出し／書き込みヘッド及び磁気記録システム
JPH04351706A (ja) *	1991-05-30	1992-12-07	Matsushita Electric Ind Co Ltd	複合型薄膜磁気ヘッド
JPH05114119A (ja) *	1991-10-21	1993-05-07	Fujitsu Ltd	磁気抵抗効果型磁気ヘツド
US5995339A (en) *	1993-03-18	1999-11-30	Fujitsu Limited	Magnetoresistive head with a front flux guide and an embedded MR element
EP0650156A1 (de) *	1993-10-21	1995-04-26	Seagate Technology International	Kontaktanordnung zur Minimierung von induktiver Störung in magnetoresistiven Leseköpfen
JP2635942B2 (ja) *	1994-02-10	1997-07-30	インターナショナル・ビジネス・マシーンズ・コーポレイション	直接アクセス記憶装置のサーボ位置決めの方法及び装置
US5748414A (en) *	1994-06-24	1998-05-05	Samsung Electro-Mechanics Co., Ltd.	Magnetoresistive element assembly with longitudinal bias
US5546256A (en) *	1994-10-21	1996-08-13	Seagate Technology, Inc.	Inductive transducer with closed-loop pole circumscribing I-shaped pole to reduce leakage flux
US5703740A (en) *	1995-08-24	1997-12-30	Velocidata, Inc.	Toroidal thin film head
US6195232B1 (en) *	1995-08-24	2001-02-27	Torohead, Inc.	Low-noise toroidal thin film head with solenoidal coil
FR2761477B1 (fr) *	1997-04-01	1999-04-23	Commissariat Energie Atomique	Capteur de champ magnetique a magnetoresistance
CN1202688A (zh) *	1997-06-02	1998-12-23	德国汤姆逊-布朗特公司	磁头鼓和具有相关磁头鼓的磁带装置
US6122149A (en) *	1997-06-24	2000-09-19	Seagate Technology, Inc.	Magnetic microactuator and inductive sensor having shaped pole configuration
JP3180785B2 (ja) *	1998-11-27	2001-06-25	日本電気株式会社	ヨーク型磁気抵抗効果ヘッド、ヨーク型磁気抵抗効果複合薄膜ヘッドおよび磁気記憶装置
US6330128B1 (en) *	1999-04-26	2001-12-11	International Business Machines Corporation	Magnetic head assembly having open yoke write head with highly defined narrow track width
JP2001237469A (ja) *	2000-02-22	2001-08-31	Fujitsu Ltd	磁気センサ及びその製造方法
JP2002083403A (ja) *	2000-09-06	2002-03-22	Hitachi Electronics Eng Co Ltd	磁気ディスクの書込／読出回路
US20020171975A1 (en) *	2001-05-15	2002-11-21	Plumer Martin L.	Writing element with no return path
US6867940B2 (en) *	2003-06-16	2005-03-15	Seagate Technology Llc	Method and apparatus for mitigating thermal pole tip protrusion
US6975472B2 (en) *	2003-09-12	2005-12-13	Seagate Technology Llc	Head with heating element and control regime therefor
US7440213B2 (en) *	2005-02-09	2008-10-21	Seagate Technology Llc	Apparatus and method for controlling remnant magnetization in a magnetic recording head
US7808746B2 (en) *	2005-08-11	2010-10-05	Seagate Technology Llc	Method and apparatus for active control of spacing between a head and a storage medium
US8724263B2 (en)	2005-08-11	2014-05-13	Seagate Technology Llc	Method for active control of spacing between a head and a storage medium
JP2008010123A (ja) *	2006-06-30	2008-01-17	Toshiba Corp	ヨーク型磁気ヘッド、および磁気ディスク装置
WO2009098760A1 (ja) *	2008-02-06	2009-08-13	Fujitsu Limited	記録素子、磁気ヘッド、および、情報記憶装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3921217A (en) *	1971-12-27	1975-11-18	Ibm	Three-legged magnetic recording head using a magnetorestive element
US4300177A (en) *	1975-07-17	1981-11-10	U.S. Philips Corporation	Thin-film magnetic head for reading and writing information
US4566050A (en) *	1982-12-30	1986-01-21	International Business Machines Corp. (Ibm)	Skew insensitive magnetic read head
NL8301188A (nl) *	1983-04-05	1984-11-01	Philips Nv	Magneetkop met een dunne strook magnetoweerstandmateriaal als leeselement.
SU1125651A1 (ru) *	1983-06-16	1984-11-23	Минский радиотехнический институт	Тонкопленочна магнитна головка
US4782415A (en) *	1985-10-02	1988-11-01	International Business Machines Corp.	Differential twin track vertical read/write magnetic head structure
US4698711A (en) *	1985-10-02	1987-10-06	International Business Machines Corporation	Simplified, shielded twin-track read/write head structure
NL8600390A (nl) *	1986-02-17	1987-09-16	Philips Nv	Magneetkop met magnetoweerstandselement.

1991
- 1991-02-27 US US07/661,797 patent/US5164869A/en not_active Expired - Lifetime
- 1991-12-11 JP JP3327633A patent/JP2500970B2/ja not_active Expired - Fee Related
1992
- 1992-01-16 DE DE69204869T patent/DE69204869T2/de not_active Expired - Fee Related
- 1992-01-16 EP EP92300382A patent/EP0501603B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE69204869T2 (de)	1996-05-02
JP2500970B2 (ja)	1996-05-29
EP0501603B1 (de)	1995-09-20
EP0501603A3 (en)	1993-06-09
EP0501603A2 (de)	1992-09-02
US5164869A (en)	1992-11-17
JPH0628633A (ja)	1994-02-04

Legal Events

Date	Code	Title	Description
1996-10-17	8364	No opposition during term of opposition
1999-02-18	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69204869D1 (de)	1995-10-26	Dünnschichtmagnetkopf.
DE69302725D1 (de)	1996-06-27	Dünnschichtmagnetkopf
DE69117389D1 (de)	1996-04-04	Flacher Dünnfilmmagnetkopf
DE69220289D1 (de)	1997-07-17	Dünnfilm-Bandkopfanordnung
DE69221962D1 (de)	1997-10-09	Dünnfilmmagnetkopf
FI921953A0 (fi)	1992-04-30	Magnetisk taetning.
DE68917535D1 (de)	1994-09-22	Magnetbandkassetten - Identifizierung.
DE69218711D1 (de)	1997-05-07	Magnetowiderstandseffekt-Dünnfilmmagnetkopf
DE3787509D1 (de)	1993-10-28	Dünnfilmmagnetkopf.
DE3689534D1 (de)	1994-02-24	Dünnschichtmagnetkopf.
DE69116602D1 (de)	1996-03-07	Magnetwiderstandseffekt-Dünnfilmkopf
DE69025821D1 (de)	1996-04-18	Dünnfilm-Magnetkopf
DE68915064D1 (de)	1994-06-09	Dünnschicht-Magnetkopf.
DE69025820D1 (de)	1996-04-18	Dünnfilmmagnetkopf
DE69123487D1 (de)	1997-01-23	Dünnfilmmagnetkopf
DE69201249D1 (de)	1995-03-09	Magnetantrieb.
DE69226567D1 (de)	1998-09-17	Integrierter Dünnfilm-Magnetkopf
DE3888287D1 (de)	1994-04-14	Film-Magnetkopf.
DE68909835D1 (de)	1993-11-18	Dünnschichtmagnetkopf.
DE69516215D1 (de)	2000-05-18	Magneto-Widerstandseffekt-Dünnfilmmagnetkopf
DE69119860D1 (de)	1996-07-04	Dünnfilmmagnetkopf
DE69120866D1 (de)	1996-08-22	Magnetowiderstandseffekt-Dünnfilmmagnetkopf
DE69014939D1 (de)	1995-01-26	Dünschichtmagnetkopf.
DE69118756D1 (de)	1996-05-23	Dünnfilmmagnetkopf
DE69214847D1 (de)	1996-12-05	Magnetkopf