DE69419367D1 - Magnetkopf - Google Patents

Magnetkopf

Info

Publication number
DE69419367D1
DE69419367D1 DE69419367T DE69419367T DE69419367D1 DE 69419367 D1 DE69419367 D1 DE 69419367D1 DE 69419367 T DE69419367 T DE 69419367T DE 69419367 T DE69419367 T DE 69419367T DE 69419367 D1 DE69419367 D1 DE 69419367D1
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 - Fee Related
Application number
DE69419367T
Other languages
English (en)
Other versions
DE69419367T2 (de
Inventor
Seiji Kumagai
Junichi Honda
Yoshitomo Ito
Masatoshi Hayakawa
Toru Matsunaga
Mineo Yorizumi
Yoshito Ikeda
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69419367D1 publication Critical patent/DE69419367D1/de
Publication of DE69419367T2 publication Critical patent/DE69419367T2/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69419367T 1993-04-30 1994-04-28 Magnetkopf Expired - Fee Related DE69419367T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5124685A JPH06314408A (ja) 1993-04-30 1993-04-30 磁気ヘッド

Publications (2)

Publication Number Publication Date
DE69419367D1 true DE69419367D1 (de) 1999-08-12
DE69419367T2 DE69419367T2 (de) 2000-01-27

Family

ID=14891547

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69419367T Expired - Fee Related DE69419367T2 (de) 1993-04-30 1994-04-28 Magnetkopf

Country Status (5)

Country Link
US (1) US5515222A (de)
EP (1) EP0628950B1 (de)
JP (1) JPH06314408A (de)
KR (1) KR100320709B1 (de)
DE (1) DE69419367T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3538930B2 (ja) * 1994-09-21 2004-06-14 ソニー株式会社 磁気ヘッド
EP0743635B1 (de) * 1995-05-18 2001-08-29 Matsushita Electric Industrial Co., Ltd. Magnetkopf, Herstellungsverfahren dafür, und diesen verwendendes Magnetaufzeichnungs-/-wiedergabegerät
JPH09204605A (ja) * 1996-01-29 1997-08-05 Sony Corp 磁気ヘッド
JP3612906B2 (ja) * 1996-03-14 2005-01-26 ソニー株式会社 磁気ヘッド
JPH1031808A (ja) * 1996-07-18 1998-02-03 Sony Corp 磁気ヘッド
JP3462019B2 (ja) * 1996-10-23 2003-11-05 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
JP3517067B2 (ja) * 1996-11-29 2004-04-05 アルプス電気株式会社 磁気ヘッド
JPH10188212A (ja) * 1996-12-25 1998-07-21 Sony Corp 磁気ヘッド
JP2000242912A (ja) * 1999-02-22 2000-09-08 Mitsumi Electric Co Ltd 薄膜磁気ヘッド
US6282056B1 (en) 1999-04-08 2001-08-28 Read-Rite Corporation Tapered stitch pole writer for high density magnetic recording
JP2001118212A (ja) 1999-10-14 2001-04-27 Matsushita Electric Ind Co Ltd 磁気ヘッドおよび磁気記録再生装置

Family Cites Families (9)

* 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
JPS54134613A (en) * 1978-04-11 1979-10-19 Toshiba Corp Magnetic head
JPS5753818A (ja) * 1980-09-16 1982-03-31 Hitachi Ltd Fukugogatajikihetsudo
US4819113A (en) * 1984-03-29 1989-04-04 Sony Corporation Magnetic transducer head with inclined magnetic gap
JPH06101091B2 (ja) * 1988-05-17 1994-12-12 日本碍子株式会社 磁気ヘッド用コア
JP2682042B2 (ja) * 1988-08-29 1997-11-26 ソニー株式会社 磁気ヘッド
US5233492A (en) * 1989-11-14 1993-08-03 Hitachi Metals, Ltd. Flying type composite magnetic head having Mn-Zn ferrite core
JP2795705B2 (ja) * 1989-11-14 1998-09-10 日立金属株式会社 浮上型磁気ヘッド
JPH0423210A (ja) * 1990-05-18 1992-01-27 Victor Co Of Japan Ltd 磁気ヘッド

Also Published As

Publication number Publication date
EP0628950A1 (de) 1994-12-14
KR940024673A (ko) 1994-11-18
JPH06314408A (ja) 1994-11-08
DE69419367T2 (de) 2000-01-27
US5515222A (en) 1996-05-07
EP0628950B1 (de) 1999-07-07
KR100320709B1 (ko) 2002-06-20

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Legal Events

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