WO2008136482A1 - 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

Info

Publication number
WO2008136482A1
WO2008136482A1 PCT/JP2008/058257 JP2008058257W WO2008136482A1 WO 2008136482 A1 WO2008136482 A1 WO 2008136482A1 JP 2008058257 W JP2008058257 W JP 2008058257W WO 2008136482 A1 WO2008136482 A1 WO 2008136482A1
Authority
WO
WIPO (PCT)
Prior art keywords
medium
magnetic recording
magnetic
fine
coupling reaction
Prior art date
Application number
PCT/JP2008/058257
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 WO2008136482A1 publication Critical patent/WO2008136482A1/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
    • G11B5/84—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 is not limited in base size and the production of which necessitates no expensive apparatuses such as a vacuum chamber; a process for producing the medium; and a magnetic recording reader employing the medium. The magnetic recording medium (1) comprises: a base (14) coated with a 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 made of a first coupling agent having a first coupling reaction group which forms a bond by coupling reaction with the firstfunctional group, the layer being bonded and fixed to the surface of the base (14) through bonds formed by the coupling reaction of the first functional group with the first coupling reaction group. The medium (1) may further have fine magnetic particles (24) 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 (24) and the particles (42) being alternately bonded and fixed over the fine-magnetic-particle layer.
PCT/JP2008/058257 2007-05-02 2008-04-30 Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium WO2008136482A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-121875 2007-05-02
JP2007121875A JP2008276890A (en) 2007-05-02 2007-05-02 Magnetic recording medium, manufacturing method thereof, and magnetic recording and reading device using the same

Publications (1)

Publication Number Publication Date
WO2008136482A1 true WO2008136482A1 (en) 2008-11-13

Family

ID=39943589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058257 WO2008136482A1 (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) JP2008276890A (en)
WO (1) WO2008136482A1 (en)

Citations (4)

* 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
JP2004087055A (en) * 2002-08-29 2004-03-18 Sony Corp Magnetic recording medium
JP2007128605A (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
JP2008221369A (en) * 2007-03-09 2008-09-25 Kagawa Univ Particulate membrane and method of manufacturing the same

Patent Citations (4)

* 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
JP2004087055A (en) * 2002-08-29 2004-03-18 Sony Corp Magnetic recording medium
JP2007128605A (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
JP2008276890A (en) 2008-11-13

Similar Documents

Publication Publication Date Title
KR101569128B1 (en) Surface treatment method, surface treatment agent, and novel compound
KR102289064B1 (en) substrate structure and method for preparing the same
CN1321885C (en) Method for preparing film of tube of directed nano carbon on soft base
JP2014503380A5 (en)
WO2010041815A3 (en) Method for preparing an abrasive sheet using an embossed substrate
MY192479A (en) Film having low refractive index film and method for producing the same, anti-reflection film and method for producing the same, coating liquid set for low refractive index film, substrate having microparticle-laminated thin film and method for producing the same, and optical member
WO2003011967A1 (en) Curable composition, cured article obtained therefrom, and photochromic optical material and process for producing the same
WO2009028486A1 (en) Soft magnetic material, dust core, method for producing soft magnetic material, and method for producing dust core
WO2009025259A1 (en) Process for producing glass substrate for magnetic disk
HK1090872A1 (en) A coated ion exchange substrate and method of forming
JP2018503701A (en) Attaching two substrates with latent reactive adhesive film
WO2008149934A1 (en) Film of fluorescent-substance fine particles, process for producing the same, and display, photosensitive material, and sensor each employing film of fluorescent-substance fine particles
WO2008102258A3 (en) Substrate preparation for enhanced thin film fabrication from group iv semiconductor nanoparticles
GB2431637A (en) The Method of Preparing Substrates-Molecular Sieve Layer Complex using Ultrasound and Apparatuses used Therein
WO2008117611A1 (en) Bonding material composition, process for producing the same, and bonded material and process for producing the same
WO2008136482A1 (en) Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium
CN106380773B (en) A kind of organic composite material for physical deposition metallic diaphragm
US20110152557A1 (en) Freezing Point-Lowering Surface Coatings
WO2008136267A1 (en) Antireflection film and method for producing the same
TW200518900A (en) Casting film for producing ceramic green sheet and process for producing said casting film
WO2008111536A1 (en) Patterned fine particle film and process for producing patterned fine particle film
WO2008136483A1 (en) Magnetic recording medium, process for producing the same, and magnetic recording reader employing the medium
WO2008149954A1 (en) Phosphor fine particle film, method for producing the same, and display device using phosphor fine particle film
WO2008111534A1 (en) Fine particle film and process for producing the same
WO2008111535A1 (en) Insulating fine-particle film, process for producing the same, and capacitor employing insulating fine-particle film

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08740925

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08740925

Country of ref document: EP

Kind code of ref document: A1