FR2390797A1 - Ensemble de tete magnetique - Google Patents

Ensemble de tete magnetique

Info

Publication number
FR2390797A1
FR2390797A1 FR7813827A FR7813827A FR2390797A1 FR 2390797 A1 FR2390797 A1 FR 2390797A1 FR 7813827 A FR7813827 A FR 7813827A FR 7813827 A FR7813827 A FR 7813827A FR 2390797 A1 FR2390797 A1 FR 2390797A1
Authority
FR
France
Prior art keywords
plates
magnetic
cores
magnetic head
head assembly
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
Application number
FR7813827A
Other languages
English (en)
Other versions
FR2390797B1 (fr
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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.)
Filing date
Publication date
Priority claimed from JP5489877A external-priority patent/JPS5816527B2/ja
Priority claimed from JP5563177A external-priority patent/JPS53141015A/ja
Priority claimed from JP5562877A external-priority patent/JPS53141012A/ja
Priority claimed from JP5563077A external-priority patent/JPS53141014A/ja
Priority claimed from JP5562977A external-priority patent/JPS53141013A/ja
Priority claimed from JP6535877A external-priority patent/JPS54613A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2390797A1 publication Critical patent/FR2390797A1/fr
Application granted granted Critical
Publication of FR2390797B1 publication Critical patent/FR2390797B1/fr
Expired 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
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • 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
    • G11B5/10—Structure or manufacture of housings or shields for heads

Landscapes

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

Abstract

Cet ensemble comprend : des noyaux en forme d'U, constituant des plaquettes magnétiques et disposés des deux côtés de plaques magnétiques, des organes d'écartement de matière non magnétique étant interposés entre eux; des noyaux arrière dont chacun comporte une bobine et des connexions électriques et constitue un circuit magnétique fermé avec le jeu correspondant de noyaux, les plaques magnétiques et les organes d'écartement constituant des plaques de blindage; et des éléments de fixation sur le boîtier de protection, formés dans les plaques de blindage. Il est conçu pour rationaliser le travail nécessaire pour son assemblage et favoriser la réduction de l'intervalle entre les éléments de la tête.
FR7813827A 1977-05-12 1978-05-10 Ensemble de tete magnetique Expired FR2390797B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP5489877A JPS5816527B2 (ja) 1977-05-12 1977-05-12 磁気ヘッド
JP5563177A JPS53141015A (en) 1977-05-13 1977-05-13 Magnetic head
JP5562877A JPS53141012A (en) 1977-05-13 1977-05-13 Magnetic head
JP5563077A JPS53141014A (en) 1977-05-13 1977-05-13 Magnetic head
JP5562977A JPS53141013A (en) 1977-05-13 1977-05-13 Magnetic head
JP6535877A JPS54613A (en) 1977-06-02 1977-06-02 Production of magnatic head

Publications (2)

Publication Number Publication Date
FR2390797A1 true FR2390797A1 (fr) 1978-12-08
FR2390797B1 FR2390797B1 (fr) 1985-12-27

Family

ID=27550577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813827A Expired FR2390797B1 (fr) 1977-05-12 1978-05-10 Ensemble de tete magnetique

Country Status (3)

Country Link
US (1) US4227225A (fr)
DE (1) DE2820383C2 (fr)
FR (1) FR2390797B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496311A1 (fr) * 1980-12-11 1982-06-18 Philips Nv Tete magnetique a plusieurs pistes, et procede pour sa fabrication
FR2553220A1 (fr) * 1983-10-07 1985-04-12 Enertec Tete magnetique multipiste perfectionnee et procede de fabrication

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07282413A (ja) * 1994-04-11 1995-10-27 Canon Inc 磁気ヘッド
LT3933B (en) 1994-05-13 1996-05-27 Vladimiras Isajevas Method for production of magnetical heads and bloc of magnetical heads
CN101309069B (zh) * 2007-05-16 2010-06-23 华为技术有限公司 解调电路、数字微波系统和解调方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1265942A (fr) * 1960-05-25 1961-07-07 Bull Sa Machines Tête magnétique double multivoie
DE1167892B (de) * 1963-08-23 1964-04-16 Telefunken Patent Aus zwei Haelften zusammengesetzter Mehrspurmagnetkopf
DE1914320A1 (de) * 1969-03-20 1970-09-24 Wolfgang Bogen Verfahren zur Herstellung eines lasergeschweissten Magnetkopfes
FR2042060A5 (fr) * 1969-04-02 1971-02-05 Ibm
DE2601943A1 (de) * 1975-01-20 1976-07-22 Olympus Optical Co Magnetkopf

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769036A (en) * 1951-04-02 1956-10-30 Ampex Electric Corp Multiple head for magnetic recording and reproduction
US2717928A (en) * 1954-01-29 1955-09-13 Ibm Multi-channel transducer
JPS5239284B1 (fr) * 1967-12-04 1977-10-04
US3614830A (en) * 1969-02-28 1971-10-26 Ibm Method of manufacturing laminated structures
US3978523A (en) * 1969-03-10 1976-08-31 Matsushita Electric Industrial Co., Ltd. Multi-channel dual-gap magnetic head
JPS4936251B1 (fr) * 1969-03-22 1974-09-28
BE754795A (fr) * 1969-08-14 1971-01-18 Bull General Electric Unite de tetes magnetiques multivoie et son procede de fabrication
US3660892A (en) * 1969-09-10 1972-05-09 Matsushita Electric Ind Co Ltd Method for making a multi-channel magnetic head
US3881194A (en) * 1973-12-17 1975-04-29 Ampex Electromagnetically switched record/reproduce head having separate windings and core legs for each mode
US3893189A (en) * 1974-01-14 1975-07-01 Spin Physics Inc Magnetic record/reproduce head and manufacturing method therefor
US4100584A (en) * 1975-12-11 1978-07-11 Burroughs Corporation Transducer head with narrow core structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1265942A (fr) * 1960-05-25 1961-07-07 Bull Sa Machines Tête magnétique double multivoie
GB913296A (en) * 1960-05-25 1962-12-19 Bull Sa Machines Improvements in or relating to double multi-channel magnetic heads
DE1167892B (de) * 1963-08-23 1964-04-16 Telefunken Patent Aus zwei Haelften zusammengesetzter Mehrspurmagnetkopf
DE1914320A1 (de) * 1969-03-20 1970-09-24 Wolfgang Bogen Verfahren zur Herstellung eines lasergeschweissten Magnetkopfes
FR2042060A5 (fr) * 1969-04-02 1971-02-05 Ibm
DE2601943A1 (de) * 1975-01-20 1976-07-22 Olympus Optical Co Magnetkopf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496311A1 (fr) * 1980-12-11 1982-06-18 Philips Nv Tete magnetique a plusieurs pistes, et procede pour sa fabrication
FR2553220A1 (fr) * 1983-10-07 1985-04-12 Enertec Tete magnetique multipiste perfectionnee et procede de fabrication

Also Published As

Publication number Publication date
US4227225A (en) 1980-10-07
FR2390797B1 (fr) 1985-12-27
DE2820383A1 (de) 1978-11-30
DE2820383C2 (de) 1985-11-07

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