DE3229774C2 - - Google Patents
Info
- Publication number
- DE3229774C2 DE3229774C2 DE3229774A DE3229774A DE3229774C2 DE 3229774 C2 DE3229774 C2 DE 3229774C2 DE 3229774 A DE3229774 A DE 3229774A DE 3229774 A DE3229774 A DE 3229774A DE 3229774 C2 DE3229774 C2 DE 3229774C2
- Authority
- DE
- Germany
- 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
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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56124005A JPS5827386A (ja) | 1981-08-10 | 1981-08-10 | 磁気抵抗効果素子 |
JP56198388A JPS58100474A (ja) | 1981-12-11 | 1981-12-11 | 磁気抵抗効果素子 |
JP56198387A JPS58100473A (ja) | 1981-12-11 | 1981-12-11 | 磁気抵抗効果素子 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3229774A1 DE3229774A1 (de) | 1983-03-24 |
DE3229774C2 true DE3229774C2 (US20030199744A1-20031023-C00003.png) | 1987-05-07 |
Family
ID=27314845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823229774 Granted DE3229774A1 (de) | 1981-08-10 | 1982-08-10 | Magnetoresistives element |
Country Status (2)
Country | Link |
---|---|
US (1) | US4477794A (US20030199744A1-20031023-C00003.png) |
DE (1) | DE3229774A1 (US20030199744A1-20031023-C00003.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120984A1 (de) * | 1990-06-26 | 1992-01-09 | Mazda Motor | Sensor mit einem magnetfilm und verfahren zu dessen herstellung |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845619A (ja) * | 1981-09-09 | 1983-03-16 | Hitachi Ltd | 磁気抵抗効果型薄膜磁気ヘッド |
DE3279790D1 (en) * | 1981-12-09 | 1989-08-03 | Matsushita Electric Ind Co Ltd | Thin film magnetic head |
JPS58166527A (ja) * | 1982-03-29 | 1983-10-01 | Nec Corp | 磁気抵抗効果ヘツド |
DE3374622D1 (en) * | 1982-04-14 | 1987-12-23 | Matsushita Electric Ind Co Ltd | A playback head for perpendicular magnetic recordings |
US4663683A (en) * | 1982-11-11 | 1987-05-05 | Matsushita Electric Industrial Co., Ltd. | Magnetoresistive thin film head |
US4566050A (en) * | 1982-12-30 | 1986-01-21 | International Business Machines Corp. (Ibm) | Skew insensitive magnetic read 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 |
JPS61178713A (ja) * | 1985-02-05 | 1986-08-11 | Victor Co Of Japan Ltd | 薄膜磁気センサ |
US4649447A (en) * | 1985-08-15 | 1987-03-10 | International Business Machines | Combed MR sensor |
JPS63202979A (ja) * | 1987-02-18 | 1988-08-22 | Alps Electric Co Ltd | エンコ−ダ用磁気センサ |
US5001586A (en) * | 1989-08-01 | 1991-03-19 | International Business Machines Corporation | Very low noise magnetoresistive sensor for high density media applications |
JP2572139B2 (ja) * | 1990-01-25 | 1997-01-16 | 旭化成工業株式会社 | 磁気抵抗センサー |
DE69106334T2 (de) * | 1990-12-10 | 1995-05-04 | Hitachi Ltd | Mehrsicht Film mit magnetoresistiven Effekt und magnetoresitives Element. |
TW243530B (en) * | 1992-12-30 | 1995-03-21 | Ibm | Magnetoresistive sensor with improved microtrack profile for improved servo-positioning precision |
TW279977B (US20030199744A1-20031023-C00003.png) * | 1993-09-24 | 1996-07-01 | Philips Electronics Nv | |
JPH08130337A (ja) * | 1994-09-09 | 1996-05-21 | Sanyo Electric Co Ltd | 磁気抵抗素子及びその製造方法 |
US5818323A (en) * | 1994-09-09 | 1998-10-06 | Sanyo Electric Co., Ltd. | Magnetoresistive device |
US5867025A (en) * | 1994-11-21 | 1999-02-02 | International Business Machines Corporation | Magnetoresistive spin valve sensor with stepped layers |
DE19633362A1 (de) * | 1996-08-19 | 1998-02-26 | Siemens Ag | Schichtaufbau mit einem magnetisch anisotropen Schichtteil |
WO2000026683A1 (en) * | 1998-10-30 | 2000-05-11 | Koninklijke Philips Electronics N.V. | Magnetoresistive magnetic field sensor |
EP1152369B1 (en) * | 1999-09-17 | 2007-03-21 | Dai Nippon Printing Co., Ltd. | Information recorded medium, device for reading the information, information recorded medium transfer foil, and method for producing information recorded medium |
DE19949713C2 (de) * | 1999-10-15 | 2001-08-16 | Bosch Gmbh Robert | Magnetoresistives Schichtsystem |
US6826021B2 (en) * | 2002-04-03 | 2004-11-30 | International Business Machines Corporation | Spin valve sensor having ultra-thin freelayers including nickel-iron, ruthenium, and a cobalt-iron nanolayer |
JP2004014001A (ja) * | 2002-06-06 | 2004-01-15 | Fuji Photo Film Co Ltd | 磁気抵抗効果型ヘッド |
US7139156B1 (en) | 2002-06-20 | 2006-11-21 | Storage Technology Corporation | Non-penetration of periodic structure to PM |
US7227726B1 (en) | 2002-11-12 | 2007-06-05 | Storage Technology Corporation | Method and system for providing a dual-stripe magnetoresistive element having periodic structure stabilization |
US7118814B1 (en) * | 2004-03-02 | 2006-10-10 | Storage Technology Corporation | Apparatus and method for step-stabilization of GMR-based read sensors |
US7545602B1 (en) * | 2005-07-26 | 2009-06-09 | Sun Microsystems, Inc. | Use of grating structures to control asymmetry in a magnetic sensor |
US9134386B2 (en) | 2011-06-28 | 2015-09-15 | Oracle International Corporation | Giant magnetoresistive sensor having horizontal stabilizer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS575067B2 (US20030199744A1-20031023-C00003.png) * | 1973-07-13 | 1982-01-28 | ||
US3864751A (en) * | 1973-10-04 | 1975-02-04 | Ibm | Induced bias magnetoresistive read transducer |
US4052748A (en) * | 1974-04-01 | 1977-10-04 | U.S. Philips Corporation | Magnetoresistive magnetic head |
JPS5613244B2 (US20030199744A1-20031023-C00003.png) * | 1974-07-31 | 1981-03-27 | ||
NL7804377A (nl) * | 1978-04-25 | 1979-10-29 | Philips Nv | Magnetoweerstandkop. |
GB2052855B (en) * | 1979-03-30 | 1983-05-18 | Sony Corp | Magnetoresistive transducers |
DE3032708A1 (de) * | 1980-08-30 | 1982-04-29 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur herstellung eines duennschicht-magnetfeld-sensors |
-
1982
- 1982-08-10 US US06/406,894 patent/US4477794A/en not_active Expired - Lifetime
- 1982-08-10 DE DE19823229774 patent/DE3229774A1/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4120984A1 (de) * | 1990-06-26 | 1992-01-09 | Mazda Motor | Sensor mit einem magnetfilm und verfahren zu dessen herstellung |
Also Published As
Publication number | Publication date |
---|---|
DE3229774A1 (de) | 1983-03-24 |
US4477794A (en) | 1984-10-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8128 | New person/name/address of the agent |
Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |