JP2001143217A - 磁気ヘッド - Google Patents

磁気ヘッド

Info

Publication number
JP2001143217A
JP2001143217A JP32343599A JP32343599A JP2001143217A JP 2001143217 A JP2001143217 A JP 2001143217A JP 32343599 A JP32343599 A JP 32343599A JP 32343599 A JP32343599 A JP 32343599A JP 2001143217 A JP2001143217 A JP 2001143217A
Authority
JP
Japan
Prior art keywords
film
magnetic
head
magnetic core
pair
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.)
Pending
Application number
JP32343599A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001143217A5 (enExample
Inventor
Masaya Kosaka
昌哉 香坂
Kaoru Aoki
薫 青木
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
Priority to JP32343599A priority Critical patent/JP2001143217A/ja
Priority to US09/711,315 priority patent/US6424490B1/en
Publication of JP2001143217A publication Critical patent/JP2001143217A/ja
Publication of JP2001143217A5 publication Critical patent/JP2001143217A5/ja
Pending 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
    • G11B5/21—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 of ferrous sheet metal or other magnetic layers
    • 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
    • G11B5/127—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
    • G11B5/23—Gap features
    • G11B5/235—Selection of material for gap filler
    • 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
    • G11B5/147—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
    • G11B5/1475—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
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP32343599A 1999-11-12 1999-11-12 磁気ヘッド Pending JP2001143217A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP32343599A JP2001143217A (ja) 1999-11-12 1999-11-12 磁気ヘッド
US09/711,315 US6424490B1 (en) 1999-11-12 2000-11-13 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32343599A JP2001143217A (ja) 1999-11-12 1999-11-12 磁気ヘッド

Publications (2)

Publication Number Publication Date
JP2001143217A true JP2001143217A (ja) 2001-05-25
JP2001143217A5 JP2001143217A5 (enExample) 2006-04-27

Family

ID=18154653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32343599A Pending JP2001143217A (ja) 1999-11-12 1999-11-12 磁気ヘッド

Country Status (2)

Country Link
US (1) US6424490B1 (enExample)
JP (1) JP2001143217A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6653921B2 (en) 2001-09-21 2003-11-25 Denso Corporation Magnetic member for electromagnetic driving device and manufacturing method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501491A (nl) * 1985-05-24 1986-12-16 Philips Nv Magneetkern.
JPS62205507A (ja) * 1986-03-05 1987-09-10 Matsushita Electric Ind Co Ltd 磁気ヘツド
JPS632109A (ja) * 1986-06-20 1988-01-07 Matsushita Electric Ind Co Ltd 磁気ヘツド
US5170301A (en) * 1988-08-03 1992-12-08 Matsushita Electric Industrial Co., Ltd. Magnetic head having core parts joined by low-melting point crystallized glass with composite gap
JPH0258714A (ja) * 1988-08-23 1990-02-27 Nippon Mining Co Ltd 磁気ヘッド
US5113299A (en) * 1989-07-24 1992-05-12 Pioneer Electronic Corporation Magnetic head with improved bonding between magnetic core halves
US5155645A (en) * 1989-11-14 1992-10-13 Sanyo Electric Co., Ltd. Magnetic head with improved efficiency in both high and low frequency ranges
JPH04278205A (ja) * 1991-03-06 1992-10-02 Sony Corp 磁気ヘッド
EP0675485B1 (en) * 1994-03-31 2002-01-09 Matsushita Electric Industrial Co., Ltd. Magnetic recording and reproduction apparatus
JPH09293207A (ja) * 1996-04-26 1997-11-11 Sony Corp 磁気ヘッド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6653921B2 (en) 2001-09-21 2003-11-25 Denso Corporation Magnetic member for electromagnetic driving device and manufacturing method thereof

Also Published As

Publication number Publication date
US6424490B1 (en) 2002-07-23

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