WO2009072433A1 - Recording head and information recording/reproduction device - Google Patents

Recording head and information recording/reproduction device Download PDF

Info

Publication number
WO2009072433A1
WO2009072433A1 PCT/JP2008/071572 JP2008071572W WO2009072433A1 WO 2009072433 A1 WO2009072433 A1 WO 2009072433A1 JP 2008071572 W JP2008071572 W JP 2008071572W WO 2009072433 A1 WO2009072433 A1 WO 2009072433A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording
light flux
light
slider
face
Prior art date
Application number
PCT/JP2008/071572
Other languages
French (fr)
Japanese (ja)
Inventor
Majung Park
Manabu Oumi
Masakazu Hirata
Original Assignee
Seiko Instruments 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 Seiko Instruments Inc. filed Critical Seiko Instruments Inc.
Publication of WO2009072433A1 publication Critical patent/WO2009072433A1/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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
    • G11B5/4866—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising an optical waveguide, e.g. for thermally-assisted recording
    • 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
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • G11B5/6088—Optical waveguide in or on flying head

Abstract

A recording head includes: a slider having an opposing face opposing to a recording medium, a plurality of side faces which are brought into contact with the opposing face, and a tip end face as one of the side faces; a recording element having a main magnetic pole for generating a recording magnetic field, an auxiliary magnetic pole, and a magnetic coil; and a core having a reflection face for reflecting a light flux introduced from a first end to a second end in a direction different from the introduction direction and a light flux converging unit which has been drawn in such a manner that the cross section area orthogonal to the direction from the first end to the second end is gradually reduced for generating a light by converging the reflected light flux while the light propagates toward a second end; and a clad which traps in the core. The recording head further includes: a light spot generation element which is fixed adjacent to the recording element with the second end facing the magnetic recording medium; and light flux introduction means which is arranged parallel to the slider and introduces the light flux from the first end into the core. A line connecting the first end and the second end of the light spot generation element is inclined with respect to the opposing face of the slider.
PCT/JP2008/071572 2007-12-04 2008-11-27 Recording head and information recording/reproduction device WO2009072433A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-313516 2007-12-04
JP2007313516A JP2009140538A (en) 2007-12-04 2007-12-04 Recording head and information recording/reproduction device

Publications (1)

Publication Number Publication Date
WO2009072433A1 true WO2009072433A1 (en) 2009-06-11

Family

ID=40717615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/071572 WO2009072433A1 (en) 2007-12-04 2008-11-27 Recording head and information recording/reproduction device

Country Status (2)

Country Link
JP (1) JP2009140538A (en)
WO (1) WO2009072433A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5804718B2 (en) * 2010-02-23 2015-11-04 セイコーインスツル株式会社 Recording head and information recording / reproducing apparatus
JP5550048B2 (en) * 2010-09-14 2014-07-16 セイコーインスツル株式会社 Recording head and information recording / reproducing apparatus
JP5740769B2 (en) * 2011-09-27 2015-07-01 セイコーインスツル株式会社 Recording head and information recording / reproducing apparatus
JP6029185B2 (en) * 2014-06-18 2016-11-24 セイコーインスツル株式会社 Recording head and information recording / reproducing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000187877A (en) * 1998-12-24 2000-07-04 Sharp Corp Optical waveguide element and waveguide type optical head
WO2007132766A1 (en) * 2006-05-16 2007-11-22 Konica Minolta Opto, Inc. Optical recording head, magneto-optical recording head, and optical recording device
JP2007305184A (en) * 2006-05-09 2007-11-22 Seiko Instruments Inc Near field light recording element, near field light head, and information recording and reproducing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000187877A (en) * 1998-12-24 2000-07-04 Sharp Corp Optical waveguide element and waveguide type optical head
JP2007305184A (en) * 2006-05-09 2007-11-22 Seiko Instruments Inc Near field light recording element, near field light head, and information recording and reproducing apparatus
WO2007132766A1 (en) * 2006-05-16 2007-11-22 Konica Minolta Opto, Inc. Optical recording head, magneto-optical recording head, and optical recording device

Also Published As

Publication number Publication date
JP2009140538A (en) 2009-06-25

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