WO2008078546A1 - Magnetic recording device, adjusting method for light assist magnetic recording head and adjusting device for light assist magnetic recording head - Google Patents

Magnetic recording device, adjusting method for light assist magnetic recording head and adjusting device for light assist magnetic recording head Download PDF

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Publication number
WO2008078546A1
WO2008078546A1 PCT/JP2007/073831 JP2007073831W WO2008078546A1 WO 2008078546 A1 WO2008078546 A1 WO 2008078546A1 JP 2007073831 W JP2007073831 W JP 2007073831W WO 2008078546 A1 WO2008078546 A1 WO 2008078546A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
light
recording head
light assist
adjusting
Prior art date
Application number
PCT/JP2007/073831
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroshi Hatano
Koujirou Sekine
Original Assignee
Konica Minolta Opto, Inc.
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 Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Priority to JP2008519764A priority Critical patent/JP4222440B2/en
Publication of WO2008078546A1 publication Critical patent/WO2008078546A1/en

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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/313—Disposition of layers
    • G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
    • G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical 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
    • G11B5/02—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
    • G11B2005/0005—Arrangements, methods or circuits
    • 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
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

It is an object to provide a magnetic recording device, an adjusting method for a light assist magnetic recording head and an adjusting device for a light assist magnetic recording head that can carry out stable magnetic recording. A magnetic recording device with a light assist magnetic recording head is provided with an irradiating optical system and a magnetic recording unit. The magnetic recording device is characterized in further comprising a light receiving element that receives a reflective component of light irradiated from the irradiating means, a branch optical system that guides the reflective light component to the light receiving element, a light amount calculating means that calculates a reflective light component amount, and a recording condition control means that controls conditions for recording information on the basis of the value calculated by the light amount calculating means.
PCT/JP2007/073831 2006-12-25 2007-12-11 Magnetic recording device, adjusting method for light assist magnetic recording head and adjusting device for light assist magnetic recording head WO2008078546A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008519764A JP4222440B2 (en) 2006-12-25 2007-12-11 Method for adjusting optically assisted magnetic recording head and adjusting device for optically assisted magnetic recording head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006347405 2006-12-25
JP2006-347405 2006-12-25

Publications (1)

Publication Number Publication Date
WO2008078546A1 true WO2008078546A1 (en) 2008-07-03

Family

ID=39562340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/073831 WO2008078546A1 (en) 2006-12-25 2007-12-11 Magnetic recording device, adjusting method for light assist magnetic recording head and adjusting device for light assist magnetic recording head

Country Status (2)

Country Link
JP (2) JP4222440B2 (en)
WO (1) WO2008078546A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084179A1 (en) * 2007-12-29 2009-07-09 Nihon University Magnetic recording device using bit-patterned media
JP2012074122A (en) * 2010-09-30 2012-04-12 Seiko Instruments Inc Head gimbal assembly, information recording and reproducing device, method for manufacturing head gimbal assembly and apparatus for manufacturing head gimbal assembly
JP2014116055A (en) * 2012-12-12 2014-06-26 Toshiba Corp Magnetic disk, magnetic disk unit, and heat assisted magnetic recording method
JP2015046213A (en) * 2013-08-27 2015-03-12 エイチジーエスティーネザーランドビーブイ Heat-assisted magnetic recording (hamr) disk drive with fly-height sensing means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000353301A (en) * 1999-06-11 2000-12-19 Hitachi Ltd Information recording/reproducing device
JP2001283453A (en) * 2000-01-27 2001-10-12 Tosoh Corp Floating type optical recording/reproducing head and method for controlling its floating quantity
JP2002150632A (en) * 2000-11-13 2002-05-24 Sharp Corp Magneto-optical recording and reproducing device
JP2007257753A (en) * 2006-03-24 2007-10-04 Konica Minolta Opto Inc Micro optical recording head and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000353301A (en) * 1999-06-11 2000-12-19 Hitachi Ltd Information recording/reproducing device
JP2001283453A (en) * 2000-01-27 2001-10-12 Tosoh Corp Floating type optical recording/reproducing head and method for controlling its floating quantity
JP2002150632A (en) * 2000-11-13 2002-05-24 Sharp Corp Magneto-optical recording and reproducing device
JP2007257753A (en) * 2006-03-24 2007-10-04 Konica Minolta Opto Inc Micro optical recording head and its manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009084179A1 (en) * 2007-12-29 2009-07-09 Nihon University Magnetic recording device using bit-patterned media
JP2012074122A (en) * 2010-09-30 2012-04-12 Seiko Instruments Inc Head gimbal assembly, information recording and reproducing device, method for manufacturing head gimbal assembly and apparatus for manufacturing head gimbal assembly
JP2014116055A (en) * 2012-12-12 2014-06-26 Toshiba Corp Magnetic disk, magnetic disk unit, and heat assisted magnetic recording method
JP2015046213A (en) * 2013-08-27 2015-03-12 エイチジーエスティーネザーランドビーブイ Heat-assisted magnetic recording (hamr) disk drive with fly-height sensing means

Also Published As

Publication number Publication date
JP2008226447A (en) 2008-09-25
JP4222440B2 (en) 2009-02-12
JPWO2008078546A1 (en) 2010-04-22

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