DE3481660D1 - Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe. - Google Patents
Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe.Info
- Publication number
- DE3481660D1 DE3481660D1 DE8484302234T DE3481660T DE3481660D1 DE 3481660 D1 DE3481660 D1 DE 3481660D1 DE 8484302234 T DE8484302234 T DE 8484302234T DE 3481660 T DE3481660 T DE 3481660T DE 3481660 D1 DE3481660 D1 DE 3481660D1
- Authority
- DE
- Germany
- Prior art keywords
- thick film
- inductive recording
- film converter
- magnetoresistive
- playback
- 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 - Lifetime
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
- G11B5/398—Specially shaped layers
-
- 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
- G11B5/33—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
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/482,654 US4555740A (en) | 1983-04-04 | 1983-04-04 | Thin film transducer head for inductive recording and magnetoresistive reading |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3481660D1 true DE3481660D1 (de) | 1990-04-19 |
Family
ID=23916901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484302234T Expired - Lifetime DE3481660D1 (de) | 1983-04-04 | 1984-04-02 | Duennschichtwandler fuer induktive aufzeichnung und magnetoresistive wiedergabe. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4555740A (de) |
EP (1) | EP0124293B1 (de) |
JP (1) | JPS59193518A (de) |
DE (1) | DE3481660D1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4731686A (en) * | 1984-03-21 | 1988-03-15 | Canon Denshi Kabushiki Kaisha | Magnetic head |
US4644430A (en) * | 1984-08-27 | 1987-02-17 | Eastman Kodak Company | Slotted sensor in yoke-type magneto-resistive head |
GB2169434B (en) * | 1984-11-24 | 1989-09-20 | Magnetic Components Limited | Magnetoresistive sensors |
JP2564262B2 (ja) * | 1985-02-27 | 1996-12-18 | 株式会社日立製作所 | 磁気抵抗効果型ヘツド |
DE3613619A1 (de) * | 1985-04-26 | 1986-10-30 | Sharp K.K., Osaka | Duennfilm-magnetkopf |
US4649447A (en) * | 1985-08-15 | 1987-03-10 | International Business Machines | Combed MR sensor |
JP2599380B2 (ja) * | 1987-02-17 | 1997-04-09 | ティーディーケイ株式会社 | 浮上型磁気ヘツド |
US4967298A (en) * | 1987-02-17 | 1990-10-30 | Mowry Greg S | Magnetic head with magnetoresistive sensor, inductive write head, and shield |
DE3818393A1 (de) * | 1988-05-30 | 1989-12-14 | Siemens Ag | Duennfilm-magnetkopf mit hoher nebenspurdaempfung |
EP0387364A1 (de) * | 1989-03-13 | 1990-09-19 | Siemens Aktiengesellschaft | Dünnfilm-Magnetkopfeinheit |
US5010025A (en) * | 1989-04-03 | 1991-04-23 | Grumman Aerospace Corporation | Method of making trench JFET integrated circuit elements |
DE69217416T2 (de) * | 1991-04-22 | 1997-09-04 | Sharp Kk | Kombinierter Dünnfilmmagnetkopf |
JP2768372B2 (ja) * | 1992-04-20 | 1998-06-25 | 日本電気株式会社 | 複合型薄膜磁気ヘッド |
US5945007A (en) * | 1992-10-20 | 1999-08-31 | Cohen; Uri | Method for etching gap-vias in a magnetic thin film head and product |
US5621595A (en) * | 1992-10-20 | 1997-04-15 | Cohen; Uri | Pinched-gap magnetic recording thin film head |
US5420736A (en) * | 1994-04-15 | 1995-05-30 | International Business Machines Corporation | MR read transducer with thermal noise cancellation |
SG34292A1 (en) * | 1994-12-30 | 1996-12-06 | Ibm | Read/write magnetoresistive (MR) head with sunken components |
JPH09167315A (ja) * | 1995-12-15 | 1997-06-24 | Hitachi Ltd | 録再分離型薄膜磁気ヘッド |
US5768070A (en) | 1997-05-14 | 1998-06-16 | International Business Machines Corporation | Horizontal thin film write, MR read head |
US6985330B2 (en) * | 2003-07-28 | 2006-01-10 | Hitachi Global Technologies Netherlands B.V. | High efficiency side-by-side thin film head utilizing canted shield yokes |
US7889458B2 (en) * | 2006-11-13 | 2011-02-15 | Hitachi Global Storage Technologies Netherlands B.V. | Write head with self-cross biased pole for high speed magnetic recording |
US20090010046A1 (en) * | 2007-06-28 | 2009-01-08 | Krishnakumar Mani | magnetic memory device with non-rectangular cross section current carrying conductors |
US10950264B2 (en) * | 2019-06-26 | 2021-03-16 | Seagate Technology Llc | Transducer positions for dual actuator data storage devices |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3813692A (en) * | 1972-10-11 | 1974-05-28 | Ibm | Internally biased magnetoresistive magnetic transducer |
US3814863A (en) * | 1972-10-11 | 1974-06-04 | Ibm | Internally biased magnetoresistive magnetic transducer |
US3887945A (en) * | 1973-12-12 | 1975-06-03 | Ibm | Head assembly for recording and reading, employing inductive and magnetoresistive elements |
US4001890A (en) * | 1974-08-05 | 1977-01-04 | Honeywell Information Systems, Inc. | Double chip flying head |
US4255772A (en) * | 1979-06-29 | 1981-03-10 | International Business Machines Corporation | Read/write magnetic head assembly with magnetoresistive sensor |
JPS5654629A (en) * | 1979-10-08 | 1981-05-14 | Hitachi Ltd | Compound thin-film magnetic head |
JPS58166527A (ja) * | 1982-03-29 | 1983-10-01 | Nec Corp | 磁気抵抗効果ヘツド |
US4504880A (en) * | 1982-08-09 | 1985-03-12 | International Business Machines Corporation | Integrated magnetic recording head assembly including an inductive write subassembly and a magnetoresistive read subassembly |
-
1983
- 1983-04-04 US US06/482,654 patent/US4555740A/en not_active Expired - Lifetime
-
1984
- 1984-04-02 DE DE8484302234T patent/DE3481660D1/de not_active Expired - Lifetime
- 1984-04-02 EP EP84302234A patent/EP0124293B1/de not_active Expired
- 1984-04-04 JP JP59067299A patent/JPS59193518A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
EP0124293B1 (de) | 1990-03-14 |
EP0124293A3 (en) | 1985-12-18 |
JPS59193518A (ja) | 1984-11-02 |
JPH0475570B2 (de) | 1992-12-01 |
US4555740A (en) | 1985-11-26 |
EP0124293A2 (de) | 1984-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE), |