DE19882200T1 - Magnetische Medien mit unregelmäßig bzw. zufallsmäßig positionierten Strukturmerkmalen - Google Patents

Magnetische Medien mit unregelmäßig bzw. zufallsmäßig positionierten Strukturmerkmalen

Info

Publication number
DE19882200T1
DE19882200T1 DE19882200T DE19882200T DE19882200T1 DE 19882200 T1 DE19882200 T1 DE 19882200T1 DE 19882200 T DE19882200 T DE 19882200T DE 19882200 T DE19882200 T DE 19882200T DE 19882200 T1 DE19882200 T1 DE 19882200T1
Authority
DE
Germany
Prior art keywords
irregularly
structural features
magnetic media
randomly positioned
positioned structural
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.)
Withdrawn
Application number
DE19882200T
Other languages
English (en)
Inventor
David S Kuo
Bruno Marchon
Wei H Yao
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of DE19882200T1 publication Critical patent/DE19882200T1/de
Withdrawn legal-status Critical Current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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0823—Devices involving rotation of the workpiece
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • 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
    • G11B5/6011—Control of flying height
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
DE19882200T 1997-03-18 1998-03-18 Magnetische Medien mit unregelmäßig bzw. zufallsmäßig positionierten Strukturmerkmalen Withdrawn DE19882200T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4106797P 1997-03-18 1997-03-18
PCT/US1998/005340 WO1998041393A1 (en) 1997-03-18 1998-03-18 Magnetic media with randomly positioned texturing features

Publications (1)

Publication Number Publication Date
DE19882200T1 true DE19882200T1 (de) 2000-03-16

Family

ID=21914537

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19882200T Withdrawn DE19882200T1 (de) 1997-03-18 1998-03-18 Magnetische Medien mit unregelmäßig bzw. zufallsmäßig positionierten Strukturmerkmalen

Country Status (7)

Country Link
US (1) US6404590B1 (de)
JP (1) JP2001521666A (de)
KR (1) KR100553482B1 (de)
DE (1) DE19882200T1 (de)
GB (1) GB2338337B (de)
HK (1) HK1024260A1 (de)
WO (1) WO1998041393A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663938B1 (en) 1997-12-12 2003-12-16 Seagate Technology Llc Media contact zone with bell-shaped texturing features
US6785079B2 (en) * 2001-03-16 2004-08-31 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for estimating the flyheight of an airbearing slider in a storage device
US7346083B2 (en) * 2001-04-10 2008-03-18 Hrl Laboratories, Llc Bandwidth enhanced self-injection locked DFB laser with narrow linewidth
US6947852B2 (en) * 2002-06-04 2005-09-20 Kla-Tencor Technologies Corporation Monitoring and correcting for non-translational motion in a resonance measurement apparatus
US7009391B2 (en) * 2003-10-15 2006-03-07 Seagate Technology Llc High throughput missing pattern detector for servo printed recording media
US20060238743A1 (en) * 2005-04-21 2006-10-26 Lizotte Todd E Speckle reduction optical mount device
JP3931990B2 (ja) * 2005-04-27 2007-06-20 大豊工業株式会社 摺動装置
CN100462180C (zh) * 2005-10-28 2009-02-18 中国科学院力学研究所 无规则偏转毛化点的辊类表面毛化激光加工系统及方法
CN100475412C (zh) * 2005-11-01 2009-04-08 中国科学院力学研究所 圆周无规则毛化点的辊类表面毛化激光加工系统及方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218749A (en) * 1978-09-25 1980-08-19 Sangamo Weston, Inc. Apparatus and method for digital noise synthesis
US5985402A (en) * 1986-12-19 1999-11-16 Hitachi, Ltd. Magnetic disk and its manufacturing method
US4831244A (en) * 1987-10-01 1989-05-16 Polaroid Corporation Optical record cards
JPH01140616U (de) * 1988-03-16 1989-09-26
US5949612A (en) * 1995-03-21 1999-09-07 Censtor Corp. Low friction sliding hard disk drive system
US5108781A (en) * 1990-03-12 1992-04-28 Magnetic Peripherals Inc. Process for manufacturing selectively textured magnetic recording media
JPH05114127A (ja) * 1991-10-23 1993-05-07 Hitachi Ltd 磁気デイスク及びその製造方法並びに磁気デイスク装置
US5768075A (en) * 1991-12-17 1998-06-16 Baradun R&D Ltd. Disk medium w/magnetically filled features aligned in rows and columns
WO1993021629A1 (en) * 1992-04-15 1993-10-28 Tulip Memory Systems, Inc. Precision-etched textured stop/start zone for magnetic-recording disks
JP3378618B2 (ja) * 1993-08-06 2003-02-17 株式会社日立製作所 磁気記録媒体
US6071595A (en) * 1994-10-26 2000-06-06 The United States Of America As Represented By The National Aeronautics And Space Administration Substrate with low secondary emissions
US5981902A (en) * 1994-12-15 1999-11-09 Mitsubishi Chemical Corporation Texturing apparatus for magnetic recording medium and magnetic recording medium process thereby
US5550696A (en) * 1995-01-27 1996-08-27 International Business Machines Corporation Magnetic recording disk having textured test band for controlling texture in the slider landing zone
US5586040A (en) * 1995-01-27 1996-12-17 International Business Machines Corporation Process and apparatus for controlled laser texturing of magnetic recording disk
US5582878A (en) * 1995-03-24 1996-12-10 Showa Denko Kabushiki Kaisha Process for producing magnetic recording medium
US5958543A (en) * 1995-07-07 1999-09-28 Stor Media,Inc. Micro-texturing for sputtered, thin film magnetic media disks utilizing titanium sputtered in the presence of hydrogen to form micro-texturing
US6048255A (en) * 1995-08-22 2000-04-11 Seagate Technology, Inc. Pulsed laser surface treatments for magnetic recording media
US5976714A (en) * 1995-10-23 1999-11-02 Mitsubishi Chemical Corporation Magnetic recording medium and method of producing the same
US5825596A (en) * 1996-02-13 1998-10-20 Kabushiki Kaisha Toshiba Hard disk drive
MY119299A (en) * 1996-10-04 2005-04-30 Showa Denko Kk Magnetic recording medium and process for producing same
US5912791A (en) * 1997-03-14 1999-06-15 Seagate Technology, Inc. Landing zone design for a magnetic disc
US6108169A (en) * 1997-12-03 2000-08-22 Quantum Corporation Randomly laser-textured magnetic recording media

Also Published As

Publication number Publication date
HK1024260A1 (en) 2000-10-05
JP2001521666A (ja) 2001-11-06
GB2338337B (en) 2001-03-07
US6404590B1 (en) 2002-06-11
KR20000076355A (ko) 2000-12-26
GB9921854D0 (en) 1999-11-17
GB2338337A (en) 1999-12-15
WO1998041393A1 (en) 1998-09-24
KR100553482B1 (ko) 2006-02-22

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8141 Disposal/no request for examination