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1. WO2020110768 - MAGNETIC RECORDING MEDIUM AND METHOD FOR PRODUCING SAME

Publication Number WO/2020/110768
Publication Date 04.06.2020
International Application No. PCT/JP2019/044806
International Filing Date 15.11.2019
IPC
G11B 5/706 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
68comprising one or more layers of magnetisable particles homogeneously mixed with a bonding agent
70on a base layer
706characterised by the composition of the magnetic material
G11B 5/712 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
68comprising one or more layers of magnetisable particles homogeneously mixed with a bonding agent
70on a base layer
712characterised by the surface treatment or coating of magnetic particles
G11B 5/73 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
73Base layers
G11B 5/852 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
84Processes or apparatus specially adapted for manufacturing record carriers
852Orientation in a magnetic field
CPC
G11B 5/706
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
68comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
70on a base layer
706characterised by the composition of the magnetic material
G11B 5/712
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
68comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
70on a base layer
712characterised by the surface treatment or coating of magnetic particles
G11B 5/73
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62Record carriers characterised by the selection of the material
73Base layers ; , i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
G11B 5/852
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
84Processes or apparatus specially adapted for manufacturing record carriers
852Orientation in a magnetic field
Applicants
  • キヤノン株式会社 CANON KABUSHIKI KAISHA [JP]/[JP]
Inventors
  • 笹栗 大助 SASAGURI Daisuke
  • 西村 直樹 NISHIMURA Naoki
Agents
  • 阿部 琢磨 ABE Takuma
  • 黒岩 創吾 KUROIWA Sogo
Priority Data
2018-22587030.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MAGNETIC RECORDING MEDIUM AND METHOD FOR PRODUCING SAME
(FR) SUPPORT D'ENREGISTREMENT MAGNÉTIQUE ET SON PROCÉDÉ DE PRODUCTION
(JA) 磁気記録媒体とその製造方法
Abstract
(EN)
A magnetic recording medium 100 according to the present invention is provided with: a recording layer 30 which contains a plurality of magnetic particles 10 that contain hard magnetic bodies 15 and a soft magnetic body 20 that is in contact with the plurality of magnetic particles 10; and a support layer 70 which is flexible and supports the recording layer 30.
(FR)
Un support d'enregistrement magnétique 100 selon la présente invention comprend : une couche d'enregistrement 30 qui contient une pluralité de particules magnétiques 10 qui contiennent des corps magnétiques durs 15 et un corps magnétique doux 20 qui est en contact avec la pluralité de particules magnétiques 10 ; et une couche de support 70 qui est souple et supporte la couche d'enregistrement 30.
(JA)
磁気記録媒体100は、硬質磁性体15を含む複数の磁性粒子10と複数の磁性粒子10に接する軟質磁性体20とを含む記録層30と、可橈性を呈し記録層30を支持する支持層70と、を備える。
Also published as
Latest bibliographic data on file with the International Bureau