DE3137482A1 - Magnetkopf - Google Patents

Magnetkopf

Info

Publication number
DE3137482A1
DE3137482A1 DE19813137482 DE3137482A DE3137482A1 DE 3137482 A1 DE3137482 A1 DE 3137482A1 DE 19813137482 DE19813137482 DE 19813137482 DE 3137482 A DE3137482 A DE 3137482A DE 3137482 A1 DE3137482 A1 DE 3137482A1
Authority
DE
Germany
Prior art keywords
magnetic
angle
track width
plane
head according
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
DE19813137482
Other languages
German (de)
English (en)
Other versions
DE3137482C2 (US06903085-20050607-C00075.png
Inventor
Hideo Tokorozawa Fujiwara
Takeshi Higashimurayama Kimura
Mitsuhiro Tokyo Kudo
Noriyuki Ome Kumasaka
Kiminari Tsukui Kanagawa Shinagawa
Yoshihiro Shiroishi
Nobuyuki Yokosuka Sugishita
Teizo Katsuta Tamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3137482A1 publication Critical patent/DE3137482A1/de
Application granted granted Critical
Publication of DE3137482C2 publication Critical patent/DE3137482C2/de
Granted 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
    • 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
    • G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
    • 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
    • G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE19813137482 1980-09-22 1981-09-21 Magnetkopf Granted DE3137482A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130734A JPS5755522A (en) 1980-09-22 1980-09-22 Magnetic head

Publications (2)

Publication Number Publication Date
DE3137482A1 true DE3137482A1 (de) 1982-05-13
DE3137482C2 DE3137482C2 (US06903085-20050607-C00075.png) 1987-04-02

Family

ID=15041345

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813137482 Granted DE3137482A1 (de) 1980-09-22 1981-09-21 Magnetkopf

Country Status (4)

Country Link
US (1) US4450494A (US06903085-20050607-C00075.png)
JP (1) JPS5755522A (US06903085-20050607-C00075.png)
DE (1) DE3137482A1 (US06903085-20050607-C00075.png)
NL (1) NL8104340A (US06903085-20050607-C00075.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086007A1 (en) * 1982-02-09 1983-08-17 Koninklijke Philips Electronics N.V. Magnetic head

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891517A (ja) * 1981-11-27 1983-05-31 Hitachi Ltd 磁気記録再生装置
JPS5914101A (ja) * 1982-07-14 1984-01-25 Hitachi Ltd 磁気記録再生方式
JPS6089805A (ja) * 1983-10-24 1985-05-20 Sony Corp 磁気消去ヘツド
NL8403595A (nl) * 1984-11-27 1986-06-16 Philips Nv Magneetkop met kerndelen van amorf ferromagnetisch metaal.
EP0314172B1 (en) * 1987-10-29 1994-03-09 Fuji Photo Film Co., Ltd. Film magnetic head
US5135818A (en) * 1989-03-28 1992-08-04 Hitachi Maxell, Ltd. Thin soft magnetic film and method of manufacturing the same
US5001588A (en) * 1989-06-30 1991-03-19 Ampex Corporation Composite core magnetic transducer having a wedge shaped core portion
US5426550A (en) * 1990-06-08 1995-06-20 Matsushita Electric Industrial Co., Ltd. Multitrack magnetic head assembly for scanning a magnetic tape with a plurality of magnetic head tips
JPH05114110A (ja) * 1991-10-22 1993-05-07 Hitachi Metals Ltd 磁歪振動ノイズを減少させた浮上型磁気ヘツド
JPH05197903A (ja) * 1991-10-28 1993-08-06 Canon Inc 光磁気記録装置
JP3462019B2 (ja) * 1996-10-23 2003-11-05 アルプス電気株式会社 磁気ヘッド
JP3517067B2 (ja) * 1996-11-29 2004-04-05 アルプス電気株式会社 磁気ヘッド
JPH10162308A (ja) * 1996-11-29 1998-06-19 Alps Electric Co Ltd 磁気ヘッド

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810245A (en) * 1971-06-28 1974-05-07 Sony Corp Single crystal ferrite magnetic head
GB2012468A (en) * 1978-01-13 1979-07-25 Victor Company Of Japan Electromagnetic transducer head

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245269A (en) * 1977-03-15 1981-01-13 Yasinavichyus Rimvidas P Magnetic head and method of fabricating the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810245A (en) * 1971-06-28 1974-05-07 Sony Corp Single crystal ferrite magnetic head
GB2012468A (en) * 1978-01-13 1979-07-25 Victor Company Of Japan Electromagnetic transducer head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086007A1 (en) * 1982-02-09 1983-08-17 Koninklijke Philips Electronics N.V. Magnetic head

Also Published As

Publication number Publication date
NL8104340A (nl) 1982-04-16
JPS5755522A (en) 1982-04-02
US4450494A (en) 1984-05-22
DE3137482C2 (US06903085-20050607-C00075.png) 1987-04-02
JPH0542725B2 (US06903085-20050607-C00075.png) 1993-06-29

Similar Documents

Publication Publication Date Title
DE3137482A1 (de) Magnetkopf
DE2934969C2 (de) Magnetkopf
DE3231286A1 (de) Magnetkopf fuer die durchfuehrung einer magnetischen queraufzeichnung
DE2829195A1 (de) Schreib-/lesekopf fuer magnetische aufzeichnungstraeger
DE2900916C2 (de) Elektromagnetischer Aufzeichnungs- und Wiedergabekopf für Bandaufzeichnungen
DE10022372A1 (de) Co-Fe-Ni-Magnetfilm mit hoher magnetischer Sättigungsflußdichte, den Film verwendender Dünnfilm-Verbundmagnetkopf und den Kopf verwendende Magnetspeichervorrichtung
DE3610432C2 (US06903085-20050607-C00075.png)
DE3607501A1 (de) Quermagnetisierungsaufzeichnungs- und wiedergabeanordnung
DE3934284C2 (de) Magnetkopf
DE3622241A1 (de) Magnet-widerstandssensor
DE4019210C2 (de) Kernkopfscheibchen
DE3447700C2 (US06903085-20050607-C00075.png)
DE2260972A1 (de) Magnetaufzeichnungskopf
DE3302695C2 (US06903085-20050607-C00075.png)
DE3812657C2 (US06903085-20050607-C00075.png)
DE3610431C2 (US06903085-20050607-C00075.png)
DE3206058C2 (de) Dünnschicht-Magnetkopf und Verfahren zu seiner Herstellung
DE3390321T1 (de) Dünnfilm-Magnetkopf
DE3426178C2 (US06903085-20050607-C00075.png)
DE3509020A1 (de) Flexibles magnetisches aufzeichnungsmedium mit einer filmunterlage mit horizontaler magnetischer anisotropie unter einem oberflaechenfilm mit senkrechter magnetischer anisotropie
DE2922039C2 (de) Magnetischer Löschkopf
DE2027082B2 (de) Magnetischer abtastkopf aus einem paar von ferriteinkristallen
DE3019366C2 (de) Magnetkopf
DE4030188C2 (de) Magnetkopf
DE3244160A1 (de) Magnetisches aufzeichnungs- und wiedergabegeraet

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee