JP4123538B2 - 磁気記録媒体 - Google Patents

磁気記録媒体 Download PDF

Info

Publication number
JP4123538B2
JP4123538B2 JP04898597A JP4898597A JP4123538B2 JP 4123538 B2 JP4123538 B2 JP 4123538B2 JP 04898597 A JP04898597 A JP 04898597A JP 4898597 A JP4898597 A JP 4898597A JP 4123538 B2 JP4123538 B2 JP 4123538B2
Authority
JP
Japan
Prior art keywords
acid
magnetic recording
polyurethane resin
recording medium
magnetic
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.)
Expired - Lifetime
Application number
JP04898597A
Other languages
English (en)
Japanese (ja)
Other versions
JPH10247315A (ja
JPH10247315A5 (https=
Inventor
篤 加藤
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
Original Assignee
Sony 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 filed Critical Sony Corp
Priority to JP04898597A priority Critical patent/JP4123538B2/ja
Priority to US09/033,604 priority patent/US6114057A/en
Priority to FR9802630A priority patent/FR2762430B1/fr
Publication of JPH10247315A publication Critical patent/JPH10247315A/ja
Publication of JPH10247315A5 publication Critical patent/JPH10247315A5/ja
Application granted granted Critical
Publication of JP4123538B2 publication Critical patent/JP4123538B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B5/702—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 bonding agent
    • G11B5/7021—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 bonding agent containing a polyurethane or a polyisocyanate

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
JP04898597A 1997-03-04 1997-03-04 磁気記録媒体 Expired - Lifetime JP4123538B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP04898597A JP4123538B2 (ja) 1997-03-04 1997-03-04 磁気記録媒体
US09/033,604 US6114057A (en) 1997-03-04 1998-03-03 Magnetic recording medium
FR9802630A FR2762430B1 (fr) 1997-03-04 1998-03-04 Support d'enregistrement magnetique a liant polyurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04898597A JP4123538B2 (ja) 1997-03-04 1997-03-04 磁気記録媒体

Publications (3)

Publication Number Publication Date
JPH10247315A JPH10247315A (ja) 1998-09-14
JPH10247315A5 JPH10247315A5 (https=) 2004-10-14
JP4123538B2 true JP4123538B2 (ja) 2008-07-23

Family

ID=12818542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04898597A Expired - Lifetime JP4123538B2 (ja) 1997-03-04 1997-03-04 磁気記録媒体

Country Status (3)

Country Link
US (1) US6114057A (https=)
JP (1) JP4123538B2 (https=)
FR (1) FR2762430B1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000005714A1 (en) * 1998-07-21 2000-02-03 Fuji Photo Film Co., Ltd. Magnetic recording medium
JP2001134921A (ja) * 1999-11-05 2001-05-18 Fuji Photo Film Co Ltd 磁気記録媒体
JP2004046952A (ja) * 2002-07-10 2004-02-12 Sony Corp 磁気記録媒体
US7585576B2 (en) 2002-12-19 2009-09-08 Sony Corporation Magnetic recording medium with dual magnetic layers including specific resins
JP2006225454A (ja) * 2005-02-16 2006-08-31 Toyobo Co Ltd ポリイミド系樹脂

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752504B2 (ja) * 1986-04-18 1995-06-05 富士写真フイルム株式会社 磁気記録媒体
JPH02108225A (ja) * 1988-10-17 1990-04-20 Tdk Corp 磁気記録媒体
US5124424A (en) * 1989-04-26 1992-06-23 Nippon Polyurethane Industry Co., Ltd. Polyurethane resin binder for magnetic recording mediums comprising a polycarbonate polyol
JP3339662B2 (ja) * 1993-12-29 2002-10-28 ソニー株式会社 磁気記録媒体及びその製造方法
JP2672783B2 (ja) * 1994-05-05 1997-11-05 モートン インターナショナル，インコーポレイティド アミノアルキルホスホネートを含む磁気記録用バインダー
JPH08293115A (ja) * 1995-02-24 1996-11-05 Fuji Photo Film Co Ltd 磁気記録媒体用結合剤および磁気記録媒体
JP3669521B2 (ja) * 1995-03-31 2005-07-06 富士写真フイルム株式会社 磁気記録媒体
JP3638360B2 (ja) * 1995-12-26 2005-04-13 富士写真フイルム株式会社 磁気記録媒体

Also Published As

Publication number Publication date
JPH10247315A (ja) 1998-09-14
FR2762430A1 (fr) 1998-10-23
US6114057A (en) 2000-09-05
FR2762430B1 (fr) 2000-11-17

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