DE3208865C2 - - Google Patents

Info

Publication number
DE3208865C2
DE3208865C2 DE3208865A DE3208865A DE3208865C2 DE 3208865 C2 DE3208865 C2 DE 3208865C2 DE 3208865 A DE3208865 A DE 3208865A DE 3208865 A DE3208865 A DE 3208865A DE 3208865 C2 DE3208865 C2 DE 3208865C2
Authority
DE
Germany
Prior art keywords
magnetic recording
material according
magnetic
recording material
parts
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
DE3208865A
Other languages
German (de)
English (en)
Other versions
DE3208865A1 (de
Inventor
Yasuyuki Yamada
Masaaki Fujiyama
Nobuo Odawara Kanagawa Jp Tsuji
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 DE3208865A1 publication Critical patent/DE3208865A1/de
Application granted granted Critical
Publication of DE3208865C2 publication Critical patent/DE3208865C2/de
Granted 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
    • G11B5/7022—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 containing mixtures of polyurethanes or polyisocyanates with other polymers
    • 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
    • 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]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31609—Particulate metal or metal compound-containing
    • 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
    • Y10T428/31703—Next to cellulosic

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
DE19823208865 1981-03-12 1982-03-11 Magnetisches aufzeichnungsmaterial Granted DE3208865A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56035891A JPS57150129A (en) 1981-03-12 1981-03-12 Magnetic recording medium

Publications (2)

Publication Number Publication Date
DE3208865A1 DE3208865A1 (de) 1982-09-23
DE3208865C2 true DE3208865C2 (OSRAM) 1992-01-02

Family

ID=12454642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823208865 Granted DE3208865A1 (de) 1981-03-12 1982-03-11 Magnetisches aufzeichnungsmaterial

Country Status (3)

Country Link
US (1) US4439486A (OSRAM)
JP (1) JPS57150129A (OSRAM)
DE (1) DE3208865A1 (OSRAM)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154618A (en) * 1981-03-19 1982-09-24 Sony Corp Magnetic recording medium
JPS58122623A (ja) * 1982-01-14 1983-07-21 Sony Corp 円盤状磁気記録媒体
JPS58203622A (ja) * 1982-05-20 1983-11-28 Asahi Chem Ind Co Ltd 磁気記録媒体用磁性塗料組成物
JPS595424A (ja) * 1982-07-01 1984-01-12 Sony Corp 磁気記録媒体
JPS595423A (ja) * 1982-07-01 1984-01-12 Sony Corp 磁気記録媒体
US4438156A (en) * 1982-09-30 1984-03-20 International Business Machines Corporation Mono-particle magnetic dispersion in organic polymers for magnetic recording
JPH0724102B2 (ja) * 1982-10-22 1995-03-15 富士写真フイルム株式会社 磁気記録体
JPS5978266A (ja) * 1982-10-27 1984-05-07 Asahi Chem Ind Co Ltd コ−テイング用組成物
JPS5984343A (ja) * 1982-11-08 1984-05-16 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS5992430A (ja) * 1982-11-12 1984-05-28 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン 磁気記録媒体
JPH0654536B2 (ja) * 1983-02-04 1994-07-20 富士写真フイルム株式会社 磁気記録媒体
JPS59165242A (ja) * 1983-03-11 1984-09-18 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPS59186125A (ja) * 1983-04-08 1984-10-22 Fuji Photo Film Co Ltd 磁気記録媒体
JPS59188831A (ja) * 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd 磁気記録体
JPS59201218A (ja) * 1983-04-28 1984-11-14 Fuji Photo Film Co Ltd 磁気記録体
JPS59203224A (ja) * 1983-05-02 1984-11-17 Fuji Photo Film Co Ltd 磁気記録媒体
US4562117A (en) * 1983-05-26 1985-12-31 Konishiroku Photo Industry Co., Ltd. Magnetic recording medium and a process of fabricating such magnetic recording medium
JPS59219448A (ja) * 1983-05-30 1984-12-10 Tohoku Tokushuko Kk 蒸着テ−プ用記録磁性体合金
DE3325556A1 (de) * 1983-07-15 1985-01-24 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von magnetischen aufzeichnungstraegern mit rueckschicht
DE3325555A1 (de) * 1983-07-15 1985-01-24 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von magnetischen aufzeichnungstraegern
JPS6028025A (ja) * 1983-07-26 1985-02-13 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6028023A (ja) * 1983-07-26 1985-02-13 Tdk Corp 磁気記録媒体
US4835069A (en) * 1983-08-06 1989-05-30 Canon Kabushiki Kaisha Magnetic recording medium
US4567116A (en) * 1983-08-06 1986-01-28 Canon Kabushiki Kaisha Magnetic recording medium
JPS6043224A (ja) * 1983-08-18 1985-03-07 Tdk Corp 磁気記録媒体
JPS6045936A (ja) * 1983-08-22 1985-03-12 Tdk Corp 磁気記録媒体
JPS6057527A (ja) * 1983-09-08 1985-04-03 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6063716A (ja) * 1983-09-16 1985-04-12 Fuji Photo Film Co Ltd 磁気記録媒体
JPS6066317A (ja) * 1983-09-20 1985-04-16 Tdk Corp 磁気記録媒体
JPS60111329A (ja) * 1983-11-21 1985-06-17 Fuji Photo Film Co Ltd 磁気記録媒体
US4639389A (en) * 1983-12-12 1987-01-27 Tdk Corporation Magnetic recording medium
DE3401771A1 (de) * 1984-01-19 1985-08-01 Agfa-Gevaert Ag, 5090 Leverkusen Magnetisches speichermedium
DE3405960A1 (de) * 1984-02-18 1985-08-22 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von magnetischen aufzeichnungstraegern mit rueckschicht sowie danach hergestellte magnetische aufzeichnungstraeger
US4687705A (en) * 1984-05-08 1987-08-18 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPS60248387A (ja) * 1984-05-25 1985-12-09 Canon Inc インクジェット記録用被記録材
JPH0656653B2 (ja) * 1984-06-13 1994-07-27 日立マクセル株式会社 磁気記録媒体
JPH063645B2 (ja) * 1984-06-25 1994-01-12 コニカ株式会社 磁気記録媒体
JPS6139223A (ja) * 1984-07-31 1986-02-25 Tdk Corp 磁気記録媒体
JPS6174138A (ja) * 1984-09-20 1986-04-16 Fuji Photo Film Co Ltd 磁気記録媒体
JPH0724100B2 (ja) * 1985-01-28 1995-03-15 日立マクセル株式会社 磁気記録媒体
JPS61177631A (ja) * 1985-01-31 1986-08-09 Konishiroku Photo Ind Co Ltd 磁気記録媒体
JPH0719353B2 (ja) * 1985-04-11 1995-03-06 富士写真フイルム株式会社 磁気記録媒体
US4693930A (en) * 1985-05-03 1987-09-15 Minnesota Mining And Manufacturing Company Smooth, low-friction magnetic recording medium
DE3526415A1 (de) * 1985-07-24 1987-02-05 Basf Ag Verfahren zur herstellung von magnetischen aufzeichnungstraegern
JPS6258419A (ja) * 1985-09-09 1987-03-14 Tdk Corp 磁気記録媒体
JPS6292235A (ja) * 1985-10-18 1987-04-27 Victor Co Of Japan Ltd 磁気記録媒体
JPS62169869A (ja) * 1986-01-23 1987-07-27 Nippon Oil & Fats Co Ltd プライマ−組成物
JPH0766525B2 (ja) * 1986-04-16 1995-07-19 富士写真フイルム株式会社 磁気記録媒体
JPS63103418A (ja) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd 磁気記録媒体
JPS63103417A (ja) * 1986-10-20 1988-05-09 Fuji Photo Film Co Ltd 磁気記録媒体
US4801505A (en) * 1986-10-20 1989-01-31 Fuji Photo Film Co., Ltd. Magnetic recording medium
JPH0687296B2 (ja) * 1987-04-24 1994-11-02 富士写真フイルム株式会社 磁気記録媒体
JPS6482329A (en) * 1987-09-24 1989-03-28 Hitachi Maxell Magnetic recording medium
DE3736998A1 (de) * 1987-10-31 1989-05-11 Basf Ag Magnetischer aufzeichnungstraeger
US4818606A (en) * 1987-12-02 1989-04-04 Konica Corporation Highly running-endurant magnetic recording medium
DE69020525T2 (de) * 1989-12-27 1995-11-30 Nippon Zeon Co Binder für Pulver und magnetischer Aufzeichnungsträger mit Verwendung des Binders und Pulvers.
JPH0630138B2 (ja) * 1990-08-31 1994-04-20 コニカ株式会社 磁気記録媒体

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552649B2 (OSRAM) * 1973-03-24 1980-01-21
JPS5093106A (OSRAM) * 1973-12-18 1975-07-25
JPS5248004B2 (OSRAM) * 1973-12-18 1977-12-07
JPS582411B2 (ja) * 1974-06-20 1983-01-17 日立マクセル株式会社 磁気記録体
JPS512802A (ja) * 1974-06-26 1976-01-10 Kawasaki Heavy Ind Ltd Chukihaiatsutaabinno seigyosochi
JPS574013B2 (OSRAM) * 1974-07-31 1982-01-23
JPS52142756A (en) * 1976-05-24 1977-11-28 Tdk Corp Nitrocellulose and magnetic recording media
JPS5429085A (en) * 1977-08-08 1979-03-03 Sumitomo Electric Ind Ltd Change over device for monitoring corrosion proof insulation of multiple cables
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
JPS54138409A (en) * 1978-04-19 1979-10-26 Tdk Corp Magnetic recording medium
JPS54159203A (en) * 1978-06-07 1979-12-15 Fuji Photo Film Co Ltd Audio magnetic recording tape
JPS5661035A (en) * 1979-10-24 1981-05-26 Hitachi Maxell Ltd Magnetic recording medium

Also Published As

Publication number Publication date
US4439486A (en) 1984-03-27
JPS57150129A (en) 1982-09-16
DE3208865A1 (de) 1982-09-23
JPH0424767B2 (OSRAM) 1992-04-28

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Legal Events

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

Representative=s name: KOHLER, M., DIPL.-CHEM. DR.RER.NAT., 8000 MUENCHEN

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
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee