JP7823663B2 - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JP7823663B2
JP7823663B2 JP2023536589A JP2023536589A JP7823663B2 JP 7823663 B2 JP7823663 B2 JP 7823663B2 JP 2023536589 A JP2023536589 A JP 2023536589A JP 2023536589 A JP2023536589 A JP 2023536589A JP 7823663 B2 JP7823663 B2 JP 7823663B2
Authority
JP
Japan
Prior art keywords
magnetic
magnetic recording
recording medium
particles
layer
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.)
Active
Application number
JP2023536589A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023002657A1 (https=
Inventor
泰啓 榎本
実 山鹿
太 佐々木
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.)
Sony Corp
Sony Group Corp
Original Assignee
Sony Corp
Sony Group Corp
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 Sony Corp, Sony Group Corp filed Critical Sony Corp
Publication of JPWO2023002657A1 publication Critical patent/JPWO2023002657A1/ja
Application granted granted Critical
Publication of JP7823663B2 publication Critical patent/JP7823663B2/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
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
    • G11B23/107—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using one reel or core, one end of the record carrier coming out of the magazine or cassette
    • 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
    • G11B5/41—Cleaning of heads
    • 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
    • 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
    • G11B5/708—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 addition of non-magnetic particles to the layer
    • 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
    • G11B5/71—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 lubricant
    • 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
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction
    • G11B5/725—Protective coatings, e.g. anti-static or antifriction containing a lubricant, e.g. organic compounds
    • 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
    • G11B5/73—Base 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
    • 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
    • G11B5/78—Tape carriers

Landscapes

  • Magnetic Record Carriers (AREA)
JP2023536589A 2021-07-21 2022-02-22 磁気記録媒体 Active JP7823663B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021120464 2021-07-21
JP2021120464 2021-07-21
PCT/JP2022/007137 WO2023002657A1 (ja) 2021-07-21 2022-02-22 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPWO2023002657A1 JPWO2023002657A1 (https=) 2023-01-26
JP7823663B2 true JP7823663B2 (ja) 2026-03-04

Family

ID=84979085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023536589A Active JP7823663B2 (ja) 2021-07-21 2022-02-22 磁気記録媒体

Country Status (3)

Country Link
US (1) US12597441B2 (https=)
JP (1) JP7823663B2 (https=)
WO (1) WO2023002657A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001006148A (ja) 1999-06-17 2001-01-12 Sony Corp 磁気記録媒体およびその製造方法
JP2016051492A (ja) 2014-08-29 2016-04-11 富士フイルム株式会社 磁気テープ

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2696330B2 (ja) * 1988-01-29 1998-01-14 コニカ株式会社 磁気記録媒体
JPH04184708A (ja) * 1990-11-20 1992-07-01 Hitachi Maxell Ltd 磁気記録媒体とその製造法
US6607806B2 (en) * 1999-12-09 2003-08-19 Fuji Photo Film Co., Ltd. Magnetic recording medium
JP2003132516A (ja) * 2001-10-25 2003-05-09 Fuji Photo Film Co Ltd 磁気記録媒体
JP2004005796A (ja) * 2002-05-30 2004-01-08 Fuji Photo Film Co Ltd 磁気記録テープ
JP2009054272A (ja) * 2007-07-27 2009-03-12 Fujifilm Corp 磁気信号再生システムおよび磁気信号再生方法
JP2010231843A (ja) * 2009-03-27 2010-10-14 Fujifilm Corp 磁気記録媒体、磁気信号再生システムおよび磁気信号再生方法
JP6737415B2 (ja) 2018-02-16 2020-08-12 ソニー株式会社 磁気記録テープとその製造方法、磁気記録テープカートリッジ
WO2022209316A1 (ja) * 2021-03-31 2022-10-06 ソニーグループ株式会社 磁気記録媒体
WO2023002723A1 (ja) * 2021-07-21 2023-01-26 ソニーグループ株式会社 磁気記録媒体およびカートリッジ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001006148A (ja) 1999-06-17 2001-01-12 Sony Corp 磁気記録媒体およびその製造方法
JP2016051492A (ja) 2014-08-29 2016-04-11 富士フイルム株式会社 磁気テープ

Also Published As

Publication number Publication date
JPWO2023002657A1 (https=) 2023-01-26
US20250336418A1 (en) 2025-10-30
WO2023002657A1 (ja) 2023-01-26
US12597441B2 (en) 2026-04-07

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