DE3886566D1 - Magnetisches Aufzeichnungsband mit einem Trägerfilm mit hohem transversalen Elastizitätsmodul. - Google Patents

Magnetisches Aufzeichnungsband mit einem Trägerfilm mit hohem transversalen Elastizitätsmodul.

Info

Publication number
DE3886566D1
DE3886566D1 DE88301235T DE3886566T DE3886566D1 DE 3886566 D1 DE3886566 D1 DE 3886566D1 DE 88301235 T DE88301235 T DE 88301235T DE 3886566 T DE3886566 T DE 3886566T DE 3886566 D1 DE3886566 D1 DE 3886566D1
Authority
DE
Germany
Prior art keywords
elasticity
magnetic recording
carrier film
recording tape
high transverse
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 - Fee Related
Application number
DE88301235T
Other languages
English (en)
Other versions
DE3886566T3 (de
DE3886566T2 (de
Inventor
Nat J Minnesota Mi Suwarnasarn
Alvin M Minnesota Mining Berg
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21768930&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3886566(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE3886566D1 publication Critical patent/DE3886566D1/de
Publication of DE3886566T2 publication Critical patent/DE3886566T2/de
Publication of DE3886566T3 publication Critical patent/DE3886566T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/73—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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • 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
    • G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper 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
    • G11B5/73—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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • 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
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73923—Organic polymer substrates
    • G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
    • G11B5/73929—Polyester substrates, e.g. polyethylene terephthalate comprising naphthalene ring compounds, e.g. polyethylene naphthalate substrates
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
DE3886566T 1987-02-17 1988-02-15 Magnetisches Aufzeichnungsband mit einem Trägerfilm mit hohem transversalen Elastizitätsmodul. Expired - Fee Related DE3886566T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/014,987 US4833019A (en) 1987-02-17 1987-02-17 Magnetic recording tape comprising a support film having a high transverse direction modulus

Publications (3)

Publication Number Publication Date
DE3886566D1 true DE3886566D1 (de) 1994-02-10
DE3886566T2 DE3886566T2 (de) 1994-07-21
DE3886566T3 DE3886566T3 (de) 1999-04-22

Family

ID=21768930

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3886566T Expired - Fee Related DE3886566T3 (de) 1987-02-17 1988-02-15 Magnetisches Aufzeichnungsband mit einem Trägerfilm mit hohem transversalen Elastizitätsmodul.

Country Status (5)

Country Link
US (1) US4833019A (de)
EP (1) EP0279613B2 (de)
JP (1) JP2828144B2 (de)
KR (1) KR880010386A (de)
DE (1) DE3886566T3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5055351A (en) * 1987-10-15 1991-10-08 Canon Kabushiki Kaisha Metal thin film type magnetic recording medium
DE3817446A1 (de) * 1988-05-21 1989-11-23 Agfa Gevaert Ag Verfahren zur herstellung eines aufzeichnungstraegers
US5004652A (en) * 1990-08-15 1991-04-02 Hmt Technology Corporation High-coercivity thin-film recording medium and method
JP2645910B2 (ja) * 1990-10-08 1997-08-25 富士写真フイルム株式会社 磁気記録媒体
JP2675217B2 (ja) * 1991-10-31 1997-11-12 帝人株式会社 ポリエチレン―２，６―ナフタレートフィルム
JP2740577B2 (ja) * 1991-02-25 1998-04-15 富士写真フイルム株式会社 磁気記録媒体
US5665454A (en) * 1991-03-22 1997-09-09 Teijin Limited Biaxially oriented polyethylene-2,6-naphthalate film and magnetic tape formed therefrom
US5419943A (en) * 1992-10-30 1995-05-30 Fuji Photo Film Co., Ltd. Magnetic recording medium having a magnetic layer with a Tg of 80° C.° C.
JP2732997B2 (ja) * 1993-01-29 1998-03-30 帝人株式会社 二軸配向ポリエチレン―２，６―ナフタレートフィルム
JP2909349B2 (ja) * 1993-05-21 1999-06-23 日立金属株式会社 絶縁膜が形成されたナノ結晶軟磁性合金薄帯および磁心ならびにパルス発生装置、レーザ装置、加速器
US5525404A (en) * 1994-02-15 1996-06-11 Matsushita Electric Industrial Co., Ltd. Tape-shaped magnetic medium comprising hexagonal ferrite particles having a crystal structure which includes magnetoplumbite and spinel crystal structures
JP4161378B2 (ja) * 1998-09-30 2008-10-08 東レ株式会社 高寸法安定性高分子フィルムおよびそれを用いた磁気記録媒体
JP2006099920A (ja) * 2004-09-30 2006-04-13 Fuji Photo Film Co Ltd 磁気抵抗効果型ヘッド用クリーニングテープ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366202A (en) * 1976-11-26 1978-06-13 Fuji Photo Film Co Ltd Magnetic recording tape
NL7800122A (nl) * 1978-01-05 1979-07-09 Philips Nv Magnetische registratieband en drager voor een magnetische registratieband.
JPS54107313A (en) * 1978-02-09 1979-08-23 Sony Corp Magnetic recording medium
JPS5611624A (en) * 1979-07-10 1981-02-05 Fuji Photo Film Co Ltd Magnetic recording material
US4497865A (en) * 1982-02-17 1985-02-05 Toray Industries, Inc. Polyethylene terephthalate film, process for the production thereof and magnetic recording medium therefrom
DE3434838A1 (de) * 1984-09-22 1986-04-03 Hoechst Ag, 6230 Frankfurt Polyesterfolie mit verbesserter dimensionsstabilitaet und abriebfestigkeit

Also Published As

Publication number Publication date
EP0279613B1 (de) 1993-12-29
EP0279613A3 (en) 1990-02-14
EP0279613A2 (de) 1988-08-24
JP2828144B2 (ja) 1998-11-25
DE3886566T3 (de) 1999-04-22
US4833019A (en) 1989-05-23
JPS63205815A (ja) 1988-08-25
DE3886566T2 (de) 1994-07-21
EP0279613B2 (de) 1998-09-30
KR880010386A (ko) 1988-10-08

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee