DE69721871D1 - Magnetkopf - Google Patents

Magnetkopf

Info

Publication number
DE69721871D1
DE69721871D1 DE69721871T DE69721871T DE69721871D1 DE 69721871 D1 DE69721871 D1 DE 69721871D1 DE 69721871 T DE69721871 T DE 69721871T DE 69721871 T DE69721871 T DE 69721871T DE 69721871 D1 DE69721871 D1 DE 69721871D1
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
DE69721871T
Other languages
English (en)
Other versions
DE69721871T2 (de
Inventor
Toru Matsunaga
Naoyuki Kaneyama
Takehiko Saito
Masatoshi Hayakawa
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
Publication of DE69721871D1 publication Critical patent/DE69721871D1/de
Application granted granted Critical
Publication of DE69721871T2 publication Critical patent/DE69721871T2/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
    • G11B5/187—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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Record Carriers (AREA)
DE69721871T 1996-03-14 1997-03-13 Magnetkopf Expired - Fee Related DE69721871T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5799496 1996-03-14
JP5799496 1996-03-14
JP33393296A JP3612906B2 (ja) 1996-03-14 1996-12-13 磁気ヘッド
JP33393296 1996-12-13

Publications (2)

Publication Number Publication Date
DE69721871D1 true DE69721871D1 (de) 2003-06-18
DE69721871T2 DE69721871T2 (de) 2004-05-13

Family

ID=26399085

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69721871T Expired - Fee Related DE69721871T2 (de) 1996-03-14 1997-03-13 Magnetkopf

Country Status (5)

Country Link
US (1) US5852536A (de)
EP (1) EP0795852B1 (de)
JP (1) JP3612906B2 (de)
KR (1) KR100454382B1 (de)
DE (1) DE69721871T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1091912A (ja) * 1996-09-17 1998-04-10 Sony Corp 磁気ヘッド
US6125803A (en) 1997-09-22 2000-10-03 Toyota Jidosha Kabushiki Kaisha Electromagnetically driven valve for an internal combustion engine
JP2003288704A (ja) * 2002-03-28 2003-10-10 Sony Corp 磁気ヘッドとその製造方法および磁気記録再生装置
JP2005085361A (ja) * 2003-09-09 2005-03-31 Fuji Photo Film Co Ltd サーボライタ

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55105818A (en) * 1979-01-31 1980-08-13 Matsushita Electric Ind Co Ltd Magnetic head
JPS5760524A (en) * 1980-09-29 1982-04-12 Hitachi Ltd Magnetic head with low sliding noise
JPS6015810A (ja) * 1983-07-05 1985-01-26 Mitsubishi Electric Corp 磁気ヘツド
JPS60107710A (ja) * 1983-11-15 1985-06-13 Sanyo Electric Co Ltd 磁気ヘッド
JPS6196506A (ja) * 1984-10-17 1986-05-15 Fuji Photo Film Co Ltd 磁気記録再生装置
JPS61129715A (ja) * 1984-11-29 1986-06-17 Toshiba Corp フエライトヘツド
JPS63146202A (ja) * 1986-12-09 1988-06-18 Canon Electronics Inc 磁気ヘツド及びその製造方法
JPH05128421A (ja) * 1991-10-31 1993-05-25 Sony Corp 接合型磁気ヘツド
JPH05210817A (ja) * 1992-01-31 1993-08-20 Hitachi Ltd 複合型磁気ヘッド
JPH0628613A (ja) * 1992-07-13 1994-02-04 Matsushita Electric Ind Co Ltd 複合型磁気ヘッド
JP2599830Y2 (ja) * 1992-12-24 1999-09-20 ミツミ電機株式会社 磁気ヘッド
JPH06314408A (ja) * 1993-04-30 1994-11-08 Sony Corp 磁気ヘッド
JP3538930B2 (ja) * 1994-09-21 2004-06-14 ソニー株式会社 磁気ヘッド

Also Published As

Publication number Publication date
KR970067113A (ko) 1997-10-13
US5852536A (en) 1998-12-22
EP0795852A2 (de) 1997-09-17
JPH09305912A (ja) 1997-11-28
JP3612906B2 (ja) 2005-01-26
EP0795852A3 (de) 1999-04-07
DE69721871T2 (de) 2004-05-13
EP0795852B1 (de) 2003-05-14
KR100454382B1 (ko) 2004-12-31

Similar Documents

Publication Publication Date Title
DE69738561D1 (de) Dünnfilm-Magnetkopf
DE69833417D1 (de) Servo-Schreibkopf
KR960011855A (ko) 자기저항효과헤드
DE69418993D1 (de) Magnetkopf
DK0954675T3 (da) Brøndtopsystem
DE69419367D1 (de) Magnetkopf
DE69506467T2 (de) Aufzeichnungskopf
DE69506629T2 (de) Magneto-resistiver Magnetkopf
DE69630745D1 (de) Magnetaufzeichnungs-/-wiedergabekopf
NO964694D0 (no) Spoleblokk
DE69721871D1 (de) Magnetkopf
DE69534614D1 (de) Magnetkopf
DE69419118D1 (de) Magnetkopf
DE59409427D1 (de) Magnetkopf
DE69701123D1 (de) Magnetkopfträger
DE69705364T2 (de) Magnetkopf
DE69414465T2 (de) Magnetkopf
FR2745294B1 (fr) Encre magnetique
KR960018708U (ko) 자기헤드
KR960002841U (ko) 자기저항헤드
KR960038461U (ko) 자기헤드
KR970006976U (ko) 자기헤드
FI950965A0 (fi) Pyöräsahapää
KR970050351U (ko) 마운트 헤드
KR980000384U (ko) 헤드크로스

Legal Events

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