FR2541492B1 - Tete magnetique pour une aimantation perpendiculaire - Google Patents

Tete magnetique pour une aimantation perpendiculaire

Info

Publication number
FR2541492B1
FR2541492B1 FR8402317A FR8402317A FR2541492B1 FR 2541492 B1 FR2541492 B1 FR 2541492B1 FR 8402317 A FR8402317 A FR 8402317A FR 8402317 A FR8402317 A FR 8402317A FR 2541492 B1 FR2541492 B1 FR 2541492B1
Authority
FR
France
Prior art keywords
magnetation
magnetic head
magnetic
head
perpendicular magnetation
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.)
Expired
Application number
FR8402317A
Other languages
English (en)
Other versions
FR2541492A1 (fr
Inventor
Kunihide Sakai
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of FR2541492A1 publication Critical patent/FR2541492A1/fr
Application granted granted Critical
Publication of FR2541492B1 publication Critical patent/FR2541492B1/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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
FR8402317A 1983-02-18 1984-02-15 Tete magnetique pour une aimantation perpendiculaire Expired FR2541492B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58024756A JPS59152515A (ja) 1983-02-18 1983-02-18 垂直磁化型磁気ヘツド

Publications (2)

Publication Number Publication Date
FR2541492A1 FR2541492A1 (fr) 1984-08-24
FR2541492B1 true FR2541492B1 (fr) 1988-03-25

Family

ID=12146987

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8402317A Expired FR2541492B1 (fr) 1983-02-18 1984-02-15 Tete magnetique pour une aimantation perpendiculaire

Country Status (6)

Country Link
US (1) US4639810A (fr)
JP (1) JPS59152515A (fr)
DE (1) DE3405434A1 (fr)
FR (1) FR2541492B1 (fr)
GB (1) GB2135500B (fr)
HK (1) HK2892A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755898A (en) * 1983-06-13 1988-07-05 Matsushita Electric Industrial Co., Ltd. Amorphous magnetic head
JPS6089804A (ja) * 1983-10-24 1985-05-20 Olympus Optical Co Ltd 垂直磁気ヘツド
JPS6173211A (ja) * 1984-09-18 1986-04-15 Sanyo Electric Co Ltd 垂直磁気記録再生ヘツド
JPS6289201A (ja) * 1985-10-16 1987-04-23 Hitachi Ltd 磁気記録再生装置
EP0317633B1 (fr) * 1986-09-11 1993-07-14 Nippon Hoso Kyokai Tete magnetique verticale d'enregistrement/reproduction
EP0585782A3 (en) * 1992-08-31 1994-05-18 Aichi Steel Works Ltd Composite magnetic component and method of manufacturing the same
US6898053B1 (en) 1999-10-26 2005-05-24 Seagate Technology Llc Perpendicular recording head with trackwidth defined by plating thickness
US6560069B1 (en) 1999-11-29 2003-05-06 Seagate Technology, Llc Perpendicular recording head defining the trackwidth by material deposition thickness
US6693768B1 (en) 2000-03-15 2004-02-17 Seagate Technology Llc Perpendicular magnetic recording head having a flux focusing main pole
US6687085B2 (en) 2001-07-17 2004-02-03 Seagate Technology Llc Perpendicular write head with high magnetization pole material and method of fabricating the write head
WO2003036625A1 (fr) 2001-10-19 2003-05-01 Seagate Technology Llc Tete d'enregistrement magnetique perpendiculaire comportant un pole d'ecriture principal multicouche
US6771464B2 (en) 2001-10-19 2004-08-03 Seagate Technology Llc Perpendicular magnetic recording head with a laminated main write pole
AU2002259093A1 (en) 2002-01-08 2003-07-30 Seagate Technology Llc Low saturation induction material for magnetic recording head write pole
WO2003060882A1 (fr) * 2002-01-08 2003-07-24 Seagate Technology Llc Tete d'enregistrement magnetique assistee par chauffage a pole d'ecriture hybride
JP4519393B2 (ja) * 2002-04-10 2010-08-04 新科實業有限公司 垂直磁気記録ヘッドおよびその製造方法、ならびに磁気記録装置
US7038882B2 (en) * 2002-10-03 2006-05-02 Seagate Technology Low moment-high moment write pole with non-magnetic layer for establishing a magnetic path discontinuity between layers of the write pole
US7595959B2 (en) * 2005-06-29 2009-09-29 Seagate Technology Llc Recording heads including a magnetically damped write pole and recording systems including such heads

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344561C3 (de) * 1973-09-04 1978-08-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verschleißarmer Magnetkopf
JPS54155814A (en) * 1978-05-30 1979-12-08 Victor Co Of Japan Ltd Production of magnetic head for erasing
JPS55163616A (en) * 1979-06-04 1980-12-19 Hitachi Ltd Manufacture of magnetic head
JPS5625219A (en) * 1979-08-08 1981-03-11 Matsushita Electric Ind Co Ltd Manufacture of magnetic head
JPS5687217A (en) * 1979-12-14 1981-07-15 Toshiba Corp Vertical magnetization type magnetic head and its manufacture
US4383284A (en) * 1979-12-14 1983-05-10 Tokyo Shibaura Denki Kabushiki Kaisha Perpendicular magnetic head and method of manufacturing the same
AT365805B (de) * 1980-03-26 1982-02-25 Matsushita Electric Ind Co Ltd Verfahren zur herstellung eines magnetkopfes
JPS56153517A (en) * 1980-04-25 1981-11-27 Toshiba Corp Vertical magnetization type magnetic head
JPS56153516A (en) * 1980-04-25 1981-11-27 Toshiba Corp Vertical magnetization type magnetic head
JPS56165918A (en) * 1980-05-23 1981-12-19 Ricoh Co Ltd Vertical magnetic recorder and reproducer
IT1129437B (it) * 1980-12-16 1986-06-04 Olivetti & Co Spa Testina magnetica
US4423450A (en) * 1981-05-06 1983-12-27 Censtor Corporation Magnetic head and multitrack transducer for perpendicular recording and method for fabricating
JPS57210416A (en) * 1981-06-19 1982-12-24 Matsushita Electric Ind Co Ltd Magnetic head

Also Published As

Publication number Publication date
GB2135500A (en) 1984-08-30
GB8404383D0 (en) 1984-03-28
US4639810A (en) 1987-01-27
GB2135500B (en) 1986-11-26
FR2541492A1 (fr) 1984-08-24
JPS59152515A (ja) 1984-08-31
HK2892A (en) 1992-01-17
DE3405434A1 (de) 1984-08-30
DE3405434C2 (fr) 1987-06-19

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Legal Events

Date Code Title Description
ST Notification of lapse