JPWO2021149716A1 - - Google Patents

Info

Publication number
JPWO2021149716A1
JPWO2021149716A1 JP2021572760A JP2021572760A JPWO2021149716A1 JP WO2021149716 A1 JPWO2021149716 A1 JP WO2021149716A1 JP 2021572760 A JP2021572760 A JP 2021572760A JP 2021572760 A JP2021572760 A JP 2021572760A JP WO2021149716 A1 JPWO2021149716 A1 JP WO2021149716A1
Authority
JP
Japan
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.)
Granted
Application number
JP2021572760A
Other languages
Japanese (ja)
Other versions
JP7590738B2 (ja
JPWO2021149716A5 (https=
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 filed Critical
Publication of JPWO2021149716A1 publication Critical patent/JPWO2021149716A1/ja
Publication of JPWO2021149716A5 publication Critical patent/JPWO2021149716A5/ja
Application granted granted Critical
Publication of JP7590738B2 publication Critical patent/JP7590738B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G11B5/62—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
    • G11B5/706—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 composition of the magnetic material
    • G11B5/70626—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 composition of the magnetic material containing non-metallic substances
    • G11B5/70642—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 composition of the magnetic material containing non-metallic substances iron oxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
    • H01F1/117—Flexible bodies
    • 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
    • G11B5/706—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 composition of the magnetic material
    • 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
    • G11B5/714—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 dimension of the magnetic particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP2021572760A 2020-01-21 2021-01-20 磁気記録媒体 Active JP7590738B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020007832 2020-01-21
JP2020007832 2020-01-21
PCT/JP2021/001829 WO2021149716A1 (ja) 2020-01-21 2021-01-20 磁気記録媒体

Publications (3)

Publication Number Publication Date
JPWO2021149716A1 true JPWO2021149716A1 (https=) 2021-07-29
JPWO2021149716A5 JPWO2021149716A5 (https=) 2024-01-12
JP7590738B2 JP7590738B2 (ja) 2024-11-27

Family

ID=76991767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021572760A Active JP7590738B2 (ja) 2020-01-21 2021-01-20 磁気記録媒体

Country Status (4)

Country Link
US (1) US12614565B2 (https=)
JP (1) JP7590738B2 (https=)
DE (1) DE112021000640T5 (https=)
WO (1) WO2021149716A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121247891B (zh) * 2025-12-03 2026-03-20 山西潞安太行润滑科技股份有限公司 一种用于联轴器润滑脂的Fe2O3抗磨减摩剂及其制备与应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008189996A (ja) * 2007-02-05 2008-08-21 Hitachi Metals Ltd Ｃｏ−Ｆｅ系合金スパッタリングターゲット材およびその製造方法
JP2019023950A (ja) * 2017-07-24 2019-02-14 マクセルホールディングス株式会社 磁気記録媒体
JP2019175532A (ja) * 2018-03-29 2019-10-10 富士フイルム株式会社 磁気記録媒体、イプシロン型酸化鉄系化合物の粒子の製造方法、及び磁気記録媒体の製造方法
JP6624332B1 (ja) * 2019-08-21 2019-12-25 ソニー株式会社 磁気記録媒体およびカートリッジ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007114394A1 (ja) * 2006-03-30 2007-10-11 Fujifilm Corporation 磁気記録媒体、リニア磁気記録再生システムおよび磁気記録再生方法
JP6649234B2 (ja) * 2016-11-30 2020-02-19 富士フイルム株式会社 ε−酸化鉄型強磁性粉末および磁気記録媒体
WO2018203468A1 (ja) 2017-05-01 2018-11-08 ソニー株式会社 磁気記録媒体
US10854233B2 (en) * 2017-09-29 2020-12-01 Fujifilm Corporation Magnetic recording medium having characterized magnetic layer and magnetic recording and reproducing device
JP2020007832A (ja) 2018-07-11 2020-01-16 パナソニックＩｐマネジメント株式会社 衛生洗浄装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008189996A (ja) * 2007-02-05 2008-08-21 Hitachi Metals Ltd Ｃｏ−Ｆｅ系合金スパッタリングターゲット材およびその製造方法
JP2019023950A (ja) * 2017-07-24 2019-02-14 マクセルホールディングス株式会社 磁気記録媒体
JP2019175532A (ja) * 2018-03-29 2019-10-10 富士フイルム株式会社 磁気記録媒体、イプシロン型酸化鉄系化合物の粒子の製造方法、及び磁気記録媒体の製造方法
JP6624332B1 (ja) * 2019-08-21 2019-12-25 ソニー株式会社 磁気記録媒体およびカートリッジ

Also Published As

Publication number Publication date
WO2021149716A1 (ja) 2021-07-29
US12614565B2 (en) 2026-04-28
DE112021000640T5 (de) 2022-11-17
JP7590738B2 (ja) 2024-11-27
US20230075546A1 (en) 2023-03-09

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