JP2001297423A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JP2001297423A
JP2001297423A JP2000108247A JP2000108247A JP2001297423A JP 2001297423 A JP2001297423 A JP 2001297423A JP 2000108247 A JP2000108247 A JP 2000108247A JP 2000108247 A JP2000108247 A JP 2000108247A JP 2001297423 A JP2001297423 A JP 2001297423A
Authority
JP
Japan
Prior art keywords
magnetic
powder
layer
magnetic layer
lower 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.)
Pending
Application number
JP2000108247A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001297423A5 (enExample
Inventor
Kiyomi Ejiri
清美 江尻
Yoshihiko Mori
仁彦 森
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2000108247A priority Critical patent/JP2001297423A/ja
Priority to US09/828,767 priority patent/US6521361B2/en
Publication of JP2001297423A publication Critical patent/JP2001297423A/ja
Publication of JP2001297423A5 publication Critical patent/JP2001297423A5/ja
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70626Record 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
    • G11B5/70642Record 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
    • G11B5/70678Ferrites
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/73Base 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
    • G11B5/733Base 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 characterised by the addition of non-magnetic particles

Landscapes

  • Magnetic Record Carriers (AREA)
JP2000108247A 2000-04-10 2000-04-10 磁気記録媒体 Pending JP2001297423A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000108247A JP2001297423A (ja) 2000-04-10 2000-04-10 磁気記録媒体
US09/828,767 US6521361B2 (en) 2000-04-10 2001-04-09 Magnetic recording medium having specified acicular ratio relationship between non-magnetic and ferromagnetic particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000108247A JP2001297423A (ja) 2000-04-10 2000-04-10 磁気記録媒体

Publications (2)

Publication Number Publication Date
JP2001297423A true JP2001297423A (ja) 2001-10-26
JP2001297423A5 JP2001297423A5 (enExample) 2005-11-04

Family

ID=18621128

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000108247A Pending JP2001297423A (ja) 2000-04-10 2000-04-10 磁気記録媒体

Country Status (2)

Country Link
US (1) US6521361B2 (enExample)
JP (1) JP2001297423A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6791803B2 (en) * 2001-08-20 2004-09-14 Fuji Photo Film Co., Ltd. Magnetic recording and reproducing method and magnetic recording medium employed for the same
JP2006048791A (ja) * 2004-08-02 2006-02-16 Sony Corp 磁気記録媒体
US8681451B2 (en) 2011-03-25 2014-03-25 Fujifilm Corporation Magnetic tape and method of manufacturing the same, and magnetic recording device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002074641A (ja) * 2000-08-31 2002-03-15 Fuji Photo Film Co Ltd 磁気記録媒体
JP2003006833A (ja) * 2001-06-26 2003-01-10 Fuji Photo Film Co Ltd 磁気テープ
JP2003016631A (ja) * 2001-06-29 2003-01-17 Fuji Photo Film Co Ltd 磁気記録媒体
JP2003317231A (ja) * 2002-04-16 2003-11-07 Fuji Photo Film Co Ltd 磁気記録媒体
JP2003317226A (ja) * 2002-04-16 2003-11-07 Fuji Photo Film Co Ltd 磁気記録媒体
AU2003280572A1 (en) * 2002-10-24 2004-05-13 Teijin Dupont Films Japan Limited Biaxially oriented polyester film and flexible disk
US7368188B2 (en) * 2004-01-30 2008-05-06 Fujifilm Corporation Magnetic recording medium
US20060019128A1 (en) * 2004-07-22 2006-01-26 Tdk Corporation Magnetic recording medium and method for evaluating magnetic recording medium
JP2006054000A (ja) * 2004-08-12 2006-02-23 Hitachi Maxell Ltd 磁気記録媒体
US20060159963A1 (en) * 2005-01-14 2006-07-20 Imation Corp. Magnetic recording medium having low broadband noise
US20100143751A1 (en) * 2005-01-14 2010-06-10 Imation Corp. Magnetic recording media having low broadband noise
US20060166042A1 (en) * 2005-01-24 2006-07-27 Seftick Daniel M Magnetic recording medium having high squareness

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069822A (ja) * 1983-08-19 1985-04-20 Toshiba Corp 磁気記録媒体
JPH0672018B2 (ja) * 1989-04-22 1994-09-14 戸田工業株式会社 磁気記録用板状複合フェライト微粒子粉末及びその製造法
US5645917A (en) * 1991-04-25 1997-07-08 Fuji Photo Film Co., Ltd. Magnetic recording medium
JP2563711B2 (ja) * 1991-01-24 1996-12-18 松下電器産業株式会社 磁気テープ
JP2849514B2 (ja) * 1992-10-29 1999-01-20 富士写真フイルム株式会社 磁気記録媒体
JP3106271B2 (ja) * 1993-01-13 2000-11-06 富士写真フイルム株式会社 磁気記録媒体
US5922454A (en) * 1995-03-17 1999-07-13 Fuji Photo Film Co., Ltd. Magnetic recording medium
US6383605B1 (en) * 1999-04-22 2002-05-07 Fuji Photo Film Co., Ltd. Magnetic recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6791803B2 (en) * 2001-08-20 2004-09-14 Fuji Photo Film Co., Ltd. Magnetic recording and reproducing method and magnetic recording medium employed for the same
JP2006048791A (ja) * 2004-08-02 2006-02-16 Sony Corp 磁気記録媒体
US8681451B2 (en) 2011-03-25 2014-03-25 Fujifilm Corporation Magnetic tape and method of manufacturing the same, and magnetic recording device

Also Published As

Publication number Publication date
US20020018915A1 (en) 2002-02-14
US6521361B2 (en) 2003-02-18

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