DE3681806D1 - Magnetkopf. - Google Patents

Magnetkopf.

Info

Publication number
DE3681806D1
DE3681806D1 DE8686103255T DE3681806T DE3681806D1 DE 3681806 D1 DE3681806 D1 DE 3681806D1 DE 8686103255 T DE8686103255 T DE 8686103255T DE 3681806 T DE3681806 T DE 3681806T DE 3681806 D1 DE3681806 D1 DE 3681806D1
Authority
DE
Germany
Prior art keywords
magnetic head
magnetic
head
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 - Lifetime
Application number
DE8686103255T
Other languages
English (en)
Inventor
Mitsuo Satomi
Ken Hirota
Osamu Inoue
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 JP5002085A external-priority patent/JPH07122924B2/ja
Priority claimed from JP23364085A external-priority patent/JPH0682448B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3681806D1 publication Critical patent/DE3681806D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G11B5/1272—Assembling or shaping of elements
    • 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
    • G11B5/255—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for protection against wear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/11—Magnetic recording head
    • Y10T428/1157—Substrate composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE8686103255T 1985-03-13 1986-03-11 Magnetkopf. Expired - Lifetime DE3681806D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5002085A JPH07122924B2 (ja) 1985-03-13 1985-03-13 軟磁性金属膜磁気ヘツド
JP23364085A JPH0682448B2 (ja) 1985-10-18 1985-10-18 酸化物基板およびそれを用いた磁気ヘツド

Publications (1)

Publication Number Publication Date
DE3681806D1 true DE3681806D1 (de) 1991-11-14

Family

ID=26390464

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103255T Expired - Lifetime DE3681806D1 (de) 1985-03-13 1986-03-11 Magnetkopf.

Country Status (3)

Country Link
US (1) US5034285A (de)
EP (1) EP0194650B1 (de)
DE (1) DE3681806D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2586639B2 (ja) * 1989-04-14 1997-03-05 松下電器産業株式会社 磁気ヘッド用基板材料及びそれを用いた磁気ヘッド
EP0490345B1 (de) * 1990-12-12 1995-04-12 Japan Energy Corporation Unmagnetisches Substrat eines Magnetkopfs, Magnetkopf- und Substratherstellungsverfahren
WO1993011531A1 (en) * 1991-12-02 1993-06-10 Nikko Kyodo Company, Limited Thin film magnetic head
EP0602567B1 (de) * 1992-12-14 1998-03-11 Sony Corporation Verfahren zur Herstellung eines Magnetkopfes
US6452765B1 (en) * 1998-11-18 2002-09-17 Read-Rite Corporation CoNbTi as high resistivity SAL material for high-density MR
US6995951B2 (en) * 2001-04-03 2006-02-07 Sony Corporation Method of planarizing substrate, magnetic head and manufacturing method of the same
JP3835237B2 (ja) * 2001-10-09 2006-10-18 ソニー株式会社 ヘッドドラム装置および磁気記録再生装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518636A (en) * 1965-01-26 1970-06-30 North American Rockwell Ferrite memory device
JPS54116663A (en) * 1978-03-03 1979-09-11 Matsushita Electric Ind Co Ltd Magnetic device
JPS57155339A (en) * 1981-03-20 1982-09-25 Matsushita Electric Ind Co Ltd Magnetic head and production thereof
JPS57198578A (en) * 1981-05-29 1982-12-06 Sumitomo Special Metals Co Ltd Material for magnetic head and slider
JPS58139322A (ja) * 1982-02-10 1983-08-18 Matsushita Electric Ind Co Ltd 磁気ヘツド止め具用磁器組成物
JPS5924958A (ja) * 1982-07-27 1984-02-08 Sumitomo Special Metals Co Ltd 薄膜磁気ヘッド用基板の製造方法
JPS59172703A (ja) * 1983-03-22 1984-09-29 Hitachi Metals Ltd 基板材料
JPS59203213A (ja) * 1983-05-04 1984-11-17 Sumitomo Special Metals Co Ltd 溝構造磁性基板の製造方法

Also Published As

Publication number Publication date
EP0194650B1 (de) 1991-10-09
EP0194650A3 (en) 1989-03-08
EP0194650A2 (de) 1986-09-17
US5034285A (en) 1991-07-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee