DE69614759D1 - Magnetkopf, Herstellungsverfahren dafür, und diesen verwendendes Magnetaufzeichnungs-/-wiedergabegerät - Google Patents

Magnetkopf, Herstellungsverfahren dafür, und diesen verwendendes Magnetaufzeichnungs-/-wiedergabegerät

Info

Publication number
DE69614759D1
DE69614759D1 DE69614759T DE69614759T DE69614759D1 DE 69614759 D1 DE69614759 D1 DE 69614759D1 DE 69614759 T DE69614759 T DE 69614759T DE 69614759 T DE69614759 T DE 69614759T DE 69614759 D1 DE69614759 D1 DE 69614759D1
Authority
DE
Germany
Prior art keywords
manufacturing
same
reproducing apparatus
method therefor
magnetic recording
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 - Fee Related
Application number
DE69614759T
Other languages
English (en)
Other versions
DE69614759T2 (de
Inventor
Yoshiyasu Honma
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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69614759D1 publication Critical patent/DE69614759D1/de
Application granted granted Critical
Publication of DE69614759T2 publication Critical patent/DE69614759T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
    • 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
    • G11B5/1274—Structure or manufacture of heads, e.g. inductive with "composite" cores, i.e. cores composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1276—Structure or manufacture of heads, e.g. inductive with "composite" cores, i.e. cores composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • 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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
    • Y10T29/49057—Using glass bonding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69614759T 1995-05-18 1996-05-15 Magnetkopf, Herstellungsverfahren dafür, und diesen verwendendes Magnetaufzeichnungs-/-wiedergabegerät Expired - Fee Related DE69614759T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11969095 1995-05-18

Publications (2)

Publication Number Publication Date
DE69614759D1 true DE69614759D1 (de) 2001-10-04
DE69614759T2 DE69614759T2 (de) 2002-06-27

Family

ID=14767653

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69614759T Expired - Fee Related DE69614759T2 (de) 1995-05-18 1996-05-15 Magnetkopf, Herstellungsverfahren dafür, und diesen verwendendes Magnetaufzeichnungs-/-wiedergabegerät

Country Status (4)

Country Link
US (3) US6061212A (de)
EP (1) EP0743635B1 (de)
CN (2) CN1069430C (de)
DE (1) DE69614759T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000207707A (ja) * 1999-01-08 2000-07-28 Hitachi Ltd 薄膜磁気ヘッド及びこれを用いた磁気ディスク装置
JP3524421B2 (ja) * 1999-03-12 2004-05-10 アルプス電気株式会社 磁気ヘッド
KR101233549B1 (ko) * 2008-10-01 2013-02-14 바쿰슈멜체 게엠베하 운트 코. 카게 자기 열교환용 물품, 자기 열교환용 물품의 중간 물품 및 제조 방법

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826527B1 (de) 1969-02-13 1973-08-11
US3975608A (en) * 1972-04-06 1976-08-17 A.G. Fur Industrielle Elektronik Agie Losone B. Locarno Method and apparatus for regulating the gap distance in electroerosin machining
US4110902A (en) 1975-12-22 1978-09-05 Hitachi, Ltd. Method for manufacturing a magnetic head for video signal
US4425701A (en) * 1980-10-17 1984-01-17 Matsushita Electric Industrial Co., Ltd. Methods of making magnetic recording heads
JPS59223924A (ja) * 1983-06-03 1984-12-15 Mitsubishi Electric Corp 狭トラツク巾磁気ヘツドの製造方法
EP0149509B1 (de) * 1984-01-14 1991-07-31 Ngk Insulators, Ltd. Magnetkopfkern und Herstellungsverfahren
JPS61260408A (ja) * 1985-05-14 1986-11-18 Matsushita Electric Ind Co Ltd 磁気ヘッドのトラック加工方法
US4890378A (en) * 1985-08-28 1990-01-02 Canon Kabushiki Kaisha Method for manufacturing a magnetic head core having a magnetic film
DE3634305A1 (de) * 1985-10-09 1987-04-16 Canon Kk Magnetkopf
JPH0758527B2 (ja) * 1986-01-10 1995-06-21 株式会社日立製作所 磁気ヘツド
JPS63205809A (ja) * 1987-02-20 1988-08-25 Canon Inc 磁気ヘツド
JPH0686309B2 (ja) * 1989-02-23 1994-11-02 株式会社日立製作所 磁気ヘッド並びにその製造方法及び磁気記録再生装置
US5022140A (en) * 1989-03-10 1991-06-11 Kabushiki Kaisha Toshiba Method of manufacturing magnetic head
JP2502144B2 (ja) * 1989-03-20 1996-05-29 日本碍子株式会社 ハニカム・ダイス成形用放電加工電極の製造方法及びハニカム・ダイスの製造方法
US5222006A (en) * 1989-06-16 1993-06-22 Canon Denshi Kabushiki Kaisha Magnetic head and core chip having a magnetic thin film
US5113299A (en) * 1989-07-24 1992-05-12 Pioneer Electronic Corporation Magnetic head with improved bonding between magnetic core halves
US5289329A (en) * 1989-09-27 1994-02-22 Mitsubishi Denki Kabushiki Kaisha Composite type magnetic head and magnetic recording/playback apparatus adopting the same
DE69011066T2 (de) * 1989-12-29 1995-03-16 Sony Corp Weichmagnetische dünne Filme auf Fe-N-Basis und solche Filme verwendender Magnetkopf.
JP2543629B2 (ja) * 1991-02-14 1996-10-16 日本碍子株式会社 磁気ディスク装置用コアスライダ及びその製造方法
JPH04353607A (ja) * 1991-05-31 1992-12-08 Matsushita Electric Ind Co Ltd 磁気ヘッド
JPH05234014A (ja) * 1992-02-20 1993-09-10 Ngk Insulators Ltd 磁気ヘッド用コアの製造法
JPH06295412A (ja) * 1993-04-09 1994-10-21 Matsushita Electric Ind Co Ltd 磁気ヘッド及び磁気ヘッドの製造方法
JPH06314408A (ja) * 1993-04-30 1994-11-08 Sony Corp 磁気ヘッド
JP3083675B2 (ja) * 1993-05-06 2000-09-04 松下電器産業株式会社 磁気ヘッドの製造方法
JP2933491B2 (ja) 1993-10-04 1999-08-16 松下電器産業株式会社 磁気ヘッドの製造方法

Also Published As

Publication number Publication date
CN1277425A (zh) 2000-12-20
EP0743635A1 (de) 1996-11-20
EP0743635B1 (de) 2001-08-29
US6061212A (en) 2000-05-09
DE69614759T2 (de) 2002-06-27
US5924189A (en) 1999-07-20
CN1126077C (zh) 2003-10-29
CN1069430C (zh) 2001-08-08
CN1139793A (zh) 1997-01-08
US6360429B1 (en) 2002-03-26

Similar Documents

Publication Publication Date Title
DE69319353D1 (de) Aufzeichnungsmedium, wiedergabeverfahren und wiedergabegerät für mehrfachszenen
DE69636844D1 (de) Plattenförmiges Aufzeichnungsmedium, Aufzeichnungs- und Wiedergabegerät
DE69934156D1 (de) Aufzeichnungs- und Wiedergabegerät und -verfahren
DE69627741D1 (de) Informationsaufzeichnungsmethode, Wiedergabemethode und Wiedergabegerät
DE69333464D1 (de) Magnetkopfanordnung, dessen herstellung und magnetplattengerät
DE69839388D1 (de) Aufzeichnungsgerät, Aufzeichnungsverfahren, Wiedergabegerät, Wiedergabeverfahren, Aufzeichnungs-/Wiedergabegerät, Aufzeichnungs-/Wiedergabeverfahren, Darstellungsmedium und Aufzeichnungsmedium
DE69421219D1 (de) Aufzeichnungsmedium, Aufzeichnungs- und/oder Wiedergabegerät und Aufzeichnungs- und/oder Wiedergabeverfahren
SG38924A1 (en) Magnetic recording medium and method for fabricating the same
DE69519497D1 (de) Aufzeichnungskopf, -verfahren und zugehöriges Gerät
DE69615795D1 (de) Aufzeichnungsverfaren, Wiedergabegerät und ein plattenförmiges Aufzeichnungsmedium
DE69520521D1 (de) Magnetischer dünner Film und Bildungsverfahren derselben, und Magnetkopf
DE69532231T2 (de) Datenaufzeichnungs-/wiedergabeverfahren, datenwiedergabevorrichtung, und aufzeichnungsmedium
DE69507080D1 (de) Optisches Informationsaufzeichnungsmedium, optisches Informationsaufzeichnungsverfahren, und optisches Informationswiedergabegerät hierfür
EP0459413A3 (en) Magnetic recording medium, method and apparatus for fabricating same
DE69431815D1 (de) Magnetische Aufzeichnungs-/Wiedergabemethode
DE69031286D1 (de) Informationsaufzeichnungsmedium und Informationsaufzeichnungs/-Wiedergabemethode und -vorrichtung, die dergleichen verwendet
DE69926283D1 (de) Wiedergabegerät, Aufzeichnungsgerät und Aufzeichnungs-/Wiedergabevorrichtung
DE69520487D1 (de) Optisches aufzeichnungsverfahren, optisches aufzeichnungsgerät und optisches aufzeichnungsmedium
DE69020032D1 (de) Magnetisches Aufzeichnungsmedium und Herstellungsverfahren desselben.
KR960015498A (ko) 기록매체의 재생 장치 및 재생 방법
DE69529961D1 (de) Aufzeichnungs/-wiedergabemagnetkopf und Herstellungsverfahren
DE69615972D1 (de) Magnetoresistiver Kopf, Herstellungsverfahren dafür und Magnetaufzeichnungs-/-wiedergabelaufwerk
DE69524897D1 (de) Magnetaufzeichnungs- und -wiedergabegerät
DE69517224D1 (de) Magnetische Aufzeichnungs-/Wiedergabevorrichtung und zugehöriges Steuerungsverfahren
SG66315A1 (en) Magnetic recording media and methods for producing the same

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee