FR2450495A1 - Tete magnetique realisee en couche mince et comportant plusieurs entrefers - Google Patents
Tete magnetique realisee en couche mince et comportant plusieurs entrefersInfo
- Publication number
- FR2450495A1 FR2450495A1 FR8004327A FR8004327A FR2450495A1 FR 2450495 A1 FR2450495 A1 FR 2450495A1 FR 8004327 A FR8004327 A FR 8004327A FR 8004327 A FR8004327 A FR 8004327A FR 2450495 A1 FR2450495 A1 FR 2450495A1
- Authority
- FR
- France
- Prior art keywords
- thin film
- magnetic head
- head made
- heads
- several gaps
- 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.)
- Granted
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
- G11B5/31—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
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
DANS UNE RANGEE DE TETES DE TRANSDUCTION MAGNETIQUES INTEGREES, ON EMPECHE LES ELEMENTS DE TRANSDUCTION DE CES TETES DE S'INFLUENCER MUTUELLEMENT DU FAIT QUE LES LIGNES D'ADMISSION 35 ET D'EVACUATION 36 DE COURANT ELECTRIQUE AUXQUELLES SONT RACCORDES LESDITS ELEMENTS DE TRANSDUCTION 37 DISTINCTS DES TETES NE SONT PAS SITUEES DANS UN MEME PLAN MAIS EMPILEES AVEC INTERPOSITION D'UNE COUCHE ELECTRIQUEMENT ISOLANTE. APPLICATION : APPAREILS D'ENREGISTREMENT ETOU DE REPRODUCTION D'INFORMATION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7901577A NL7901577A (nl) | 1979-02-28 | 1979-02-28 | Meerspoors dunne film magneetkop. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2450495A1 true FR2450495A1 (fr) | 1980-09-26 |
FR2450495B1 FR2450495B1 (fr) | 1987-09-18 |
Family
ID=19832706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8004327A Expired FR2450495B1 (fr) | 1979-02-28 | 1980-02-27 | Tete magnetique realisee en couche mince et comportant plusieurs entrefers |
Country Status (8)
Country | Link |
---|---|
US (1) | US4320428A (fr) |
JP (2) | JPS55117727A (fr) |
CA (1) | CA1151766A (fr) |
DE (1) | DE3007046A1 (fr) |
FR (1) | FR2450495B1 (fr) |
GB (1) | GB2044509B (fr) |
HK (1) | HK64184A (fr) |
NL (1) | NL7901577A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085855A1 (fr) * | 1982-02-06 | 1983-08-17 | Robert Bosch Gmbh | Tête magnétique multipiste en couche mince à haute densité de piste |
EP0178898A2 (fr) * | 1984-10-18 | 1986-04-23 | International Business Machines Corporation | Transducteur magnétique inductif |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4418372A (en) * | 1979-08-02 | 1983-11-29 | Hitachi, Ltd. | Magnetic rotary encoder |
US4503439A (en) * | 1983-03-08 | 1985-03-05 | Springer Gilbert D | Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure |
EP0124435B1 (fr) * | 1983-04-27 | 1988-06-29 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Tête magnétique pour film mince avec indication d'usure |
US4639808A (en) * | 1984-09-26 | 1987-01-27 | Storage Technology Corporation | Asymmetrical shields for controlling feedthrough in read/write heads |
JPS61104313A (ja) * | 1984-10-22 | 1986-05-22 | Sharp Corp | 薄膜磁気ヘツド装置 |
US4799119A (en) * | 1986-09-10 | 1989-01-17 | International Business Machines Corporation | Flexible circuit magnetic core winding for a core member |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1879364U (de) * | 1961-11-17 | 1963-09-19 | Wohlenberg K G H | Setzmagnetkopf fuer impulsmarkentraeger. |
GB1307886A (en) * | 1970-05-12 | 1973-02-21 | Ibm | Magnetic transducing head |
JPS49112610A (fr) * | 1973-02-26 | 1974-10-26 | ||
JPS5330486B2 (fr) * | 1973-07-18 | 1978-08-28 | ||
US4065797A (en) * | 1974-12-20 | 1977-12-27 | Matsushita Electric Industrial Co., Ltd. | Multi-element magnetic head |
JPS554734A (en) * | 1978-06-23 | 1980-01-14 | Fujitsu Ltd | Thin film magnetic head for vertical magnetic recording |
-
1979
- 1979-02-28 NL NL7901577A patent/NL7901577A/nl not_active Application Discontinuation
-
1980
- 1980-01-21 US US06/113,846 patent/US4320428A/en not_active Expired - Lifetime
- 1980-02-25 GB GB8006271A patent/GB2044509B/en not_active Expired
- 1980-02-25 CA CA000346394A patent/CA1151766A/fr not_active Expired
- 1980-02-26 DE DE19803007046 patent/DE3007046A1/de active Granted
- 1980-02-27 FR FR8004327A patent/FR2450495B1/fr not_active Expired
- 1980-02-28 JP JP2349980A patent/JPS55117727A/ja active Pending
-
1984
- 1984-08-16 HK HK641/84A patent/HK64184A/xx unknown
-
1989
- 1989-03-03 JP JP1989023884U patent/JPH0233290Y2/ja not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085855A1 (fr) * | 1982-02-06 | 1983-08-17 | Robert Bosch Gmbh | Tête magnétique multipiste en couche mince à haute densité de piste |
EP0178898A2 (fr) * | 1984-10-18 | 1986-04-23 | International Business Machines Corporation | Transducteur magnétique inductif |
EP0178898A3 (fr) * | 1984-10-18 | 1988-03-30 | International Business Machines Corporation | Transducteur magnétique inductif |
Also Published As
Publication number | Publication date |
---|---|
NL7901577A (nl) | 1980-09-01 |
GB2044509A (en) | 1980-10-15 |
DE3007046C2 (fr) | 1987-01-02 |
DE3007046A1 (de) | 1980-09-11 |
JPH01146305U (fr) | 1989-10-09 |
CA1151766A (fr) | 1983-08-09 |
FR2450495B1 (fr) | 1987-09-18 |
JPH0233290Y2 (fr) | 1990-09-07 |
US4320428A (en) | 1982-03-16 |
JPS55117727A (en) | 1980-09-10 |
GB2044509B (en) | 1983-05-11 |
HK64184A (en) | 1984-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |