DE3342150C2 - Magnetisches Aufzeichnungsmaterial - Google Patents

Magnetisches Aufzeichnungsmaterial

Info

Publication number
DE3342150C2
DE3342150C2 DE3342150A DE3342150A DE3342150C2 DE 3342150 C2 DE3342150 C2 DE 3342150C2 DE 3342150 A DE3342150 A DE 3342150A DE 3342150 A DE3342150 A DE 3342150A DE 3342150 C2 DE3342150 C2 DE 3342150C2
Authority
DE
Germany
Prior art keywords
magnetic
magnetic recording
recording material
plate
material according
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
DE3342150A
Other languages
German (de)
English (en)
Other versions
DE3342150A1 (de
Inventor
Takamitsu Asai
Masaaki Fujiyama
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
Publication of DE3342150A1 publication Critical patent/DE3342150A1/de
Application granted granted Critical
Publication of DE3342150C2 publication Critical patent/DE3342150C2/de
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
    • G11B5/706—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
    • G11B5/70678—Ferrites
    • 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
    • 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
    • G11B5/7368—Non-polymeric layer under the lowermost magnetic recording 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
    • 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
    • G11B5/73937—Substrates having an organic polymer comprising a ring structure
    • 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
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256—Heavy metal or aluminum or compound thereof
    • Y10T428/257—Iron oxide or aluminum oxide
    • 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]
    • Y10T428/31678—Of metal
    • 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]
    • Y10T428/31678—Of metal
    • Y10T428/31681—Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]
    • 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.]

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
DE3342150A 1982-11-22 1983-11-22 Magnetisches Aufzeichnungsmaterial Expired - Lifetime DE3342150C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57203737A JPS5994231A (ja) 1982-11-22 1982-11-22 磁気記録体

Publications (2)

Publication Number Publication Date
DE3342150A1 DE3342150A1 (de) 1984-05-24
DE3342150C2 true DE3342150C2 (de) 1996-02-08

Family

ID=16479015

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3342150A Expired - Lifetime DE3342150C2 (de) 1982-11-22 1983-11-22 Magnetisches Aufzeichnungsmaterial

Country Status (4)

Country Link
US (1) US4657814A (OSRAM)
JP (1) JPS5994231A (OSRAM)
DE (1) DE3342150C2 (OSRAM)
NL (1) NL192702C (OSRAM)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2611964B2 (ja) * 1983-12-13 1997-05-21 株式会社東芝 磁気記録媒体
JPS61104602A (ja) * 1984-10-29 1986-05-22 Saitama Univ 垂直磁気記録媒体用針状バリウム・フエライトおよびその製造法
US4702959A (en) * 1985-03-19 1987-10-27 Tdk Corporation Magnetic recording medium
JP2500934B2 (ja) * 1985-03-27 1996-05-29 ティーディーケイ株式会社 磁気記録媒体
GB2173811B (en) * 1985-04-05 1988-08-24 Tdk Corp Magnetic recording medium
JPH0760512B2 (ja) * 1985-06-26 1995-06-28 富士写真フイルム株式会社 磁気記録媒体
US5400307A (en) * 1987-08-26 1995-03-21 Sony Corporation Magneto-optical recording medium with stacked layer structure
US5040166A (en) * 1988-10-21 1991-08-13 Oki Electric Industry Co., Ltd. Magneto-optical recording medium having a reflective film of Ag and Mn or Ag, Mn and Sn
JPH04318320A (ja) * 1991-04-18 1992-11-09 Konica Corp 磁気記録媒体

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150939A (en) * 1961-07-17 1964-09-29 Ibm High density record carrier
DE2250460C3 (de) * 1972-10-14 1981-09-10 Ibm Deutschland Gmbh, 7000 Stuttgart Magnetischer Aufzeichnungsträger
GB1458353A (OSRAM) * 1973-01-17 1976-12-15
US4034133A (en) * 1973-05-14 1977-07-05 International Business Machines Corporation Magnetic recording medium with lubricant
JPS5714103B2 (OSRAM) * 1973-08-13 1982-03-23
DE2460320A1 (de) * 1974-12-20 1976-07-01 Ibm Deutschland Magnetischer aufzeichnungstraeger
JPS5365704U (OSRAM) * 1976-11-05 1978-06-02
JPS5474706A (en) * 1977-11-28 1979-06-15 Teijin Ltd Base film for magnetically recording
JPS6032891B2 (ja) * 1978-02-22 1985-07-31 株式会社日立製作所 高記録密度磁気ディスクの製造法
JPS551651A (en) * 1978-06-19 1980-01-08 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS5517881A (en) * 1978-07-25 1980-02-07 Matsushita Electric Ind Co Ltd Magnetic recording medium and its production
US4254189A (en) * 1979-07-05 1981-03-03 Memorex Corporation Disc having substrate, intermediate layer and magnetically sensitive layer wherein intermediate layer has melting point less than annealing temperature of substrate but higher than processing temperature of magnetically sensitive layer
JPS5667904A (en) * 1979-11-08 1981-06-08 Toshiba Corp Preparation method of megnetic powder for high density magnetic recording
JPS5671821A (en) * 1979-11-14 1981-06-15 Hitachi Ltd Substrate for magnetic disc and its manufacture
JPS5730122A (en) * 1980-07-28 1982-02-18 Fuji Photo Film Co Ltd Base film for magnetic recording medium
JPS5758229A (en) * 1980-09-22 1982-04-07 Toshiba Corp Magnetic painting material for magnetic recording medium
JPS57167126A (en) * 1981-04-06 1982-10-14 Olympus Optical Co Ltd Production for magnetic recording medium
JPS57195329A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57195327A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS581835A (ja) * 1981-06-26 1983-01-07 Fujitsu Ltd 磁気デイスク表面潤滑剤調整具
US4405684A (en) * 1981-09-21 1983-09-20 International Business Machines Corporation Rigid magnetic coating composition with thermosetting binder for hard file
JPS58205928A (ja) * 1982-05-25 1983-12-01 Toshiba Corp 磁気記録媒体

Also Published As

Publication number Publication date
US4657814A (en) 1987-04-14
DE3342150A1 (de) 1984-05-24
NL192702B (nl) 1997-08-01
JPH0479049B2 (OSRAM) 1992-12-14
NL192702C (nl) 1997-12-02
JPS5994231A (ja) 1984-05-30
NL8304004A (nl) 1984-06-18

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: SOLF, A., DR.-ING., 8000 MUENCHEN ZAPF, C., DIPL.-

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G11B 5/706

D2 Grant after examination
8364 No opposition during term of opposition