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JPS54128719A - Vertical magnetization recorder - Google Patents

Vertical magnetization recorder

Info

Publication number
JPS54128719A
JPS54128719A JP3610178A JP3610178A JPS54128719A JP S54128719 A JPS54128719 A JP S54128719A JP 3610178 A JP3610178 A JP 3610178A JP 3610178 A JP3610178 A JP 3610178A JP S54128719 A JPS54128719 A JP S54128719A
Authority
JP
Japan
Prior art keywords
magnetic field
signal
magnetic
recording operation
bias
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
JP3610178A
Other languages
Japanese (ja)
Inventor
Tatsuo Fujiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3610178A priority Critical patent/JPS54128719A/en
Publication of JPS54128719A publication Critical patent/JPS54128719A/en
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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface

Landscapes

  • Magnetic Heads (AREA)

Abstract

PURPOSE:To superpose a signal magnetic field upon a bias magnetic field by providing means for feeding a winding with a recording signal current thereby to generate the signal magnetic field from a magnetic pole. CONSTITUTION:When the winding 34 of a first magnetic pole 33 is supplied with a signal current upon a signal recording operation whereas the winding 37 of a second magnetic pole 36 is supplied with a bias current, there are generated a signal magnetic field and a bias magnetic field, respectively. These magnetic fields are vertically applied together to a magnetic recording medium 31. As a result, the medium 31 is supplied with the composed magnetic field between the two magnetic fields so that the medium 31 is vertically magnetized to effect the signal recording operation. In case the recording operation is performed by superposing the bias magnetic field upon the signal magnetic field, it is possible to sufficiently accomplish the recording operation in response to the signal magnetic field at a low level.
JP3610178A 1978-03-30 1978-03-30 Vertical magnetization recorder Pending JPS54128719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3610178A JPS54128719A (en) 1978-03-30 1978-03-30 Vertical magnetization recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3610178A JPS54128719A (en) 1978-03-30 1978-03-30 Vertical magnetization recorder

Publications (1)

Publication Number Publication Date
JPS54128719A true JPS54128719A (en) 1979-10-05

Family

ID=12460368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3610178A Pending JPS54128719A (en) 1978-03-30 1978-03-30 Vertical magnetization recorder

Country Status (1)

Country Link
JP (1) JPS54128719A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551625A (en) * 1978-06-19 1980-01-08 Canon Inc Magnetic recording and reproducing element
JPS6111903A (en) * 1984-06-27 1986-01-20 Fuji Photo Film Co Ltd Magnetic head device
WO2001022407A1 (en) * 1999-09-20 2001-03-29 Seagate Technology, Llc Magnetic recording head including background magnetic field generator
US6646827B1 (en) 2000-01-10 2003-11-11 Seagate Technology Llc Perpendicular magnetic recording head with write pole which reduces flux antenna effect
US6717770B1 (en) 2000-03-24 2004-04-06 Seagate Technology Llc Recording head for applying a magnetic field perpendicular to the magnetizations within magnetic storage media
US6798615B1 (en) 2000-03-24 2004-09-28 Seagate Technology Llc Perpendicular recording head with return poles which reduce flux antenna effect
US6876519B1 (en) 1999-09-20 2005-04-05 Seagate Technology Llc Magnetic recording head including background magnetic field generator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551625A (en) * 1978-06-19 1980-01-08 Canon Inc Magnetic recording and reproducing element
JPS6111903A (en) * 1984-06-27 1986-01-20 Fuji Photo Film Co Ltd Magnetic head device
WO2001022407A1 (en) * 1999-09-20 2001-03-29 Seagate Technology, Llc Magnetic recording head including background magnetic field generator
JP2003510739A (en) * 1999-09-20 2003-03-18 シーゲイト テクノロジー エルエルシー Magnetic recording head with background magnetic field generator
US6876519B1 (en) 1999-09-20 2005-04-05 Seagate Technology Llc Magnetic recording head including background magnetic field generator
JP4746232B2 (en) * 1999-09-20 2011-08-10 シーゲイト テクノロジー エルエルシー Magnetic recording head with background magnetic field generator
US6646827B1 (en) 2000-01-10 2003-11-11 Seagate Technology Llc Perpendicular magnetic recording head with write pole which reduces flux antenna effect
US6717770B1 (en) 2000-03-24 2004-04-06 Seagate Technology Llc Recording head for applying a magnetic field perpendicular to the magnetizations within magnetic storage media
US6798615B1 (en) 2000-03-24 2004-09-28 Seagate Technology Llc Perpendicular recording head with return poles which reduce flux antenna effect

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