WO2008136483A1 - Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium - Google Patents

Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium Download PDF

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Publication number
WO2008136483A1
WO2008136483A1 PCT/JP2008/058258 JP2008058258W WO2008136483A1 WO 2008136483 A1 WO2008136483 A1 WO 2008136483A1 JP 2008058258 W JP2008058258 W JP 2008058258W WO 2008136483 A1 WO2008136483 A1 WO 2008136483A1
Authority
WO
WIPO (PCT)
Prior art keywords
medium
magnetic recording
magnetic
fine
particles
Prior art date
Application number
PCT/JP2008/058258
Other languages
French (fr)
Japanese (ja)
Inventor
Kazufumi Ogawa
Original Assignee
Kazufumi Ogawa
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 Kazufumi Ogawa filed Critical Kazufumi Ogawa
Publication of WO2008136483A1 publication Critical patent/WO2008136483A1/en

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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
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/712—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the surface treatment or coating of magnetic particles

Abstract

A magnetic recording medium which can be produced by a simple process, combines a high recording density with unsusceptibility to peeling, and is easily controlled with respect to film thickness and patterning; a process for producing the medium; and a magnetic recording reader employing the medium. The magnetic recording medium (3) comprises: a base (14) coated with a patterned coating film made of a first film-forming compound having a first functional group; and one fine-magnetic-particle layer comprising fine reactive magnetic particles (42) arranged and coated with a coating film which undergoes coupling reaction with the first functional group, the layer being bonded and fixed to the surface of the base (14) through bonds formed by the coupling reaction. The medium (1) may further have fine magnetic particles (34) coated with a coating film of a film-forming compound reacting with the first coupling reaction group and fine reactive magnetic particles (42), the particles (34) and the particles (42) being alternately bonded and fixed over the fine-magnetic-particle layer.
PCT/JP2008/058258 2007-05-02 2008-04-30 Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium WO2008136483A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-121859 2007-05-02
JP2007121859A JP2008276889A (en) 2007-05-02 2007-05-02 Magnetic recording medium, manufacturing method of magnetic recording medium and magnetic recording and reading device using the same

Publications (1)

Publication Number Publication Date
WO2008136483A1 true WO2008136483A1 (en) 2008-11-13

Family

ID=39943590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058258 WO2008136483A1 (en) 2007-05-02 2008-04-30 Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium

Country Status (2)

Country Link
JP (1) JP2008276889A (en)
WO (1) WO2008136483A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000048340A (en) * 1998-07-31 2000-02-18 Internatl Business Mach Corp <Ibm> Magnetic memory medium comprising nano particle
JP2003168606A (en) * 2001-01-24 2003-06-13 Matsushita Electric Ind Co Ltd Fine particle array, its manufacturing method and device using the method
JP2007128607A (en) * 2005-11-04 2007-05-24 Kagawa Univ Magnetic recording medium, its manufacturing method, and magnetic recording and reading device using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5028619B2 (en) * 2007-03-09 2012-09-19 国立大学法人 香川大学 Patterned fine particle film and method for producing patterned fine particle film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000048340A (en) * 1998-07-31 2000-02-18 Internatl Business Mach Corp <Ibm> Magnetic memory medium comprising nano particle
JP2003168606A (en) * 2001-01-24 2003-06-13 Matsushita Electric Ind Co Ltd Fine particle array, its manufacturing method and device using the method
JP2007128607A (en) * 2005-11-04 2007-05-24 Kagawa Univ Magnetic recording medium, its manufacturing method, and magnetic recording and reading device using the same

Also Published As

Publication number Publication date
JP2008276889A (en) 2008-11-13

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