KR920700440A - 자기 헤드 - Google Patents

자기 헤드

Info

Publication number
KR920700440A
KR920700440A KR1019900702480A KR900702480A KR920700440A KR 920700440 A KR920700440 A KR 920700440A KR 1019900702480 A KR1019900702480 A KR 1019900702480A KR 900702480 A KR900702480 A KR 900702480A KR 920700440 A KR920700440 A KR 920700440A
Authority
KR
South Korea
Prior art keywords
magnetic head
magnetic
head
Prior art date
Application number
KR1019900702480A
Other languages
English (en)
Other versions
KR0178764B1 (ko
Inventor
가쯔미 사까다
이꾸꼬 사또
다쯔오 구무라
요시또 이께다
히로야 에구찌
히데아끼 마쯔야마
히데아끼 가라몬
Original Assignee
소니 가부시끼 가이샤
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 소니 가부시끼 가이샤 filed Critical 소니 가부시끼 가이샤
Publication of KR920700440A publication Critical patent/KR920700440A/ko
Application granted granted Critical
Publication of KR0178764B1 publication Critical patent/KR0178764B1/ko

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
    • G11B5/187—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
    • 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
    • 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
    • Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
    • Y10T29/49039—Fabricating head structure or component thereof including measuring or testing with dual gap materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
KR1019900702480A 1989-03-20 1990-03-19 자기 헤드 KR0178764B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP66098 1989-03-20
JP6609889 1989-03-20
JP160805 1989-06-26
JP1160805A JP2971891B2 (ja) 1989-03-20 1989-06-26 磁気ヘッド
PCT/JP1990/000368 WO1990011595A1 (en) 1989-03-20 1990-03-19 Magnetic head

Publications (2)

Publication Number Publication Date
KR920700440A true KR920700440A (ko) 1992-02-19
KR0178764B1 KR0178764B1 (ko) 1999-05-01

Family

ID=26407278

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900702480A KR0178764B1 (ko) 1989-03-20 1990-03-19 자기 헤드

Country Status (4)

Country Link
US (1) US5162960A (ko)
JP (1) JP2971891B2 (ko)
KR (1) KR0178764B1 (ko)
WO (1) WO1990011595A1 (ko)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05117023A (ja) * 1991-10-25 1993-05-14 Nec Corp 磁気ヘツド用非磁性基板および磁気ヘツド
US5417847A (en) * 1991-12-23 1995-05-23 Membrane Technology And Research, Inc. Pervaporation apparatus and process
JPH05325135A (ja) * 1992-05-25 1993-12-10 Matsushita Electric Ind Co Ltd 薄膜型磁気ヘッド
US5411813A (en) * 1993-04-08 1995-05-02 Eastman Kodak Company Ferhgasi soft magnetic materials for inductive magnetic heads
JPH0714115A (ja) * 1993-06-28 1995-01-17 Ngk Insulators Ltd 磁気ヘッド用コア
JPH07225910A (ja) * 1994-02-08 1995-08-22 Mitsubishi Electric Corp 磁気ヘッドの製造方法
EP0694908A1 (en) 1994-06-30 1996-01-31 Eastman Kodak Company Magnetic head having a diffusion bonded gap and diffusion bonded laminated core
JP2701796B2 (ja) * 1995-06-30 1998-01-21 日本電気株式会社 薄膜磁気ヘッド及びその製造方法
EP0768640A3 (en) * 1995-10-13 1998-11-11 Ampex Corporation A small core magnetic head with non-magnetic side support
JP2002050005A (ja) * 2000-07-31 2002-02-15 Sony Corp 磁気ヘッド
US6606219B2 (en) * 2001-02-28 2003-08-12 Lafe Technology Limited Magnetic tape head including a transducer cluster and a block fixed to a u-shaped frame having a ridge
WO2002083046A1 (en) 2001-04-16 2002-10-24 Pamela Howard Wound dressing system
WO2006135848A2 (en) * 2005-06-10 2006-12-21 Pamela Howard Wound management system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412455A (en) * 1962-12-26 1968-11-26 Philips Corp Fusion bonding to non-metals
US4048714A (en) * 1975-06-12 1977-09-20 Huntt Robert L Glass bonding of manganese-zinc ferrite
JPS52127218A (en) * 1976-04-16 1977-10-25 Matsushita Electric Ind Co Ltd Magnetic head and its manufacture
US4172318A (en) * 1977-08-17 1979-10-30 Huntt Robert L Method of joining manganese zinc ferrite pole pieces
JPS5960724A (ja) * 1982-09-30 1984-04-06 Nec Home Electronics Ltd 磁気ヘツド用コア
JPS59195315A (ja) * 1983-04-20 1984-11-06 Sanyo Electric Co Ltd 磁気ヘツドの製造方法
JPS60236106A (ja) * 1984-05-08 1985-11-22 Seiko Epson Corp 磁気ヘツド及び磁気ヘツドの製造方法
JPS61137211A (ja) * 1984-12-07 1986-06-24 Pioneer Electronic Corp 磁気ヘツド
JPS62184613A (ja) * 1986-02-10 1987-08-13 Matsushita Electric Ind Co Ltd 磁気ヘツドの製造方法
EP0273496B1 (en) * 1986-12-03 1991-04-10 Koninklijke Philips Electronics N.V. Magnetic head having an electro-chemically inert gap of hard material

Also Published As

Publication number Publication date
JP2971891B2 (ja) 1999-11-08
WO1990011595A1 (en) 1990-10-04
JPH0316006A (ja) 1991-01-24
US5162960A (en) 1992-11-10
KR0178764B1 (ko) 1999-05-01

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20071029

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee