JPS5640404B2 - - Google Patents
Info
- Publication number
- JPS5640404B2 JPS5640404B2 JP3790773A JP3790773A JPS5640404B2 JP S5640404 B2 JPS5640404 B2 JP S5640404B2 JP 3790773 A JP3790773 A JP 3790773A JP 3790773 A JP3790773 A JP 3790773A JP S5640404 B2 JPS5640404 B2 JP S5640404B2
- Authority
- JP
- Japan
- 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
-
- 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
- G11B5/17—Construction or disposition of windings
-
- 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
-
- 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
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
- G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US255116A US3881191A (en) | 1972-05-19 | 1972-05-19 | Three-gap magnetic recording head having a single flux sensing means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4929618A JPS4929618A (US06826419-20041130-M00005.png) | 1974-03-16 |
| JPS5640404B2 true JPS5640404B2 (US06826419-20041130-M00005.png) | 1981-09-21 |
Family
ID=22966897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3790773A Expired JPS5640404B2 (US06826419-20041130-M00005.png) | 1972-05-19 | 1973-04-04 |
Country Status (5)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443308U (US06826419-20041130-M00005.png) * | 1990-08-09 | 1992-04-13 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2264350B1 (US06826419-20041130-M00005.png) * | 1974-03-11 | 1978-09-29 | Cii | |
| US4404609A (en) * | 1981-10-30 | 1983-09-13 | International Business Machines Corporation | Thin film inductive transducer for perpendicular recording |
| DE3241400A1 (de) * | 1982-11-09 | 1984-05-10 | Nixdorf Computer Ag, 4790 Paderborn | Verfahren und einrichtung zur fortlaufenden aufzeichnung von informationssignalen vorbestimmter laenge auf eine magnetspeicherspur |
| NL8401116A (nl) * | 1984-04-09 | 1985-11-01 | Philips Nv | Magnetische leeskop met een meervoudige spleet. |
| US4644432A (en) * | 1985-01-28 | 1987-02-17 | International Business Machines | Three pole single element magnetic read/write head |
| US5134535A (en) * | 1991-01-18 | 1992-07-28 | Digital Equipment Corporation | Architecture for a thin-film magnetic recording head |
| US5378885A (en) * | 1991-10-29 | 1995-01-03 | Mars Incorporated | Unshielded magnetoresistive head with multiple pairs of sensing elements |
| DE4314423A1 (de) * | 1993-05-03 | 1994-11-10 | Philips Patentverwaltung | Magnetbandgerät |
| JPH0773411A (ja) * | 1993-08-31 | 1995-03-17 | Sony Corp | データカートリッジ用磁気ヘッド装置 |
| EP0889460B1 (en) * | 1997-07-04 | 2003-09-24 | STMicroelectronics S.r.l. | An electromagnetic head with magnetoresistive means connected to a magnetic core |
| JP2008071982A (ja) * | 2006-09-15 | 2008-03-27 | Hitachi Industrial Equipment Systems Co Ltd | 変圧器 |
| US8385018B2 (en) * | 2009-11-03 | 2013-02-26 | International Business Machines Corporation | Magnetic writer having multiple gaps with more uniform magnetic fields across the gaps |
| US8315013B2 (en) * | 2010-05-10 | 2012-11-20 | International Business Machines Corporation | Magnetic write head with flux diverting structure |
| GB2502574A (en) * | 2012-05-31 | 2013-12-04 | Ibm | Write head producing same magnetic field strength at each gap |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL262508A (US06826419-20041130-M00005.png) * | 1960-03-18 | |||
| FR1270579A (fr) * | 1960-07-18 | 1961-09-01 | Tête pour l'enregistrement ou la lecture de magnétogrammes | |
| US3207856A (en) * | 1962-04-16 | 1965-09-21 | Michigan Magnetics Inc | Magnetic head for recorder and reproducer |
| US3317742A (en) * | 1963-01-30 | 1967-05-02 | Fritz A Guerth | Pulse generating apparatus |
| US3495049A (en) * | 1968-03-08 | 1970-02-10 | Michigan Magnetics Inc | Magnetic transducer wear indicator |
-
1972
- 1972-05-19 US US255116A patent/US3881191A/en not_active Expired - Lifetime
-
1973
- 1973-03-29 DE DE2315713A patent/DE2315713A1/de active Pending
- 1973-04-04 JP JP3790773A patent/JPS5640404B2/ja not_active Expired
- 1973-04-10 FR FR7313794A patent/FR2185826B1/fr not_active Expired
- 1973-04-30 GB GB2040873A patent/GB1406756A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443308U (US06826419-20041130-M00005.png) * | 1990-08-09 | 1992-04-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2185826A1 (US06826419-20041130-M00005.png) | 1974-01-04 |
| GB1406756A (en) | 1975-09-17 |
| US3881191A (en) | 1975-04-29 |
| DE2315713A1 (de) | 1973-11-29 |
| FR2185826B1 (US06826419-20041130-M00005.png) | 1977-07-29 |
| JPS4929618A (US06826419-20041130-M00005.png) | 1974-03-16 |
