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GB2054622B - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
GB2054622B
GB2054622B GB8022605A GB8022605A GB2054622B GB 2054622 B GB2054622 B GB 2054622B GB 8022605 A GB8022605 A GB 8022605A GB 8022605 A GB8022605 A GB 8022605A GB 2054622 B GB2054622 B GB 2054622B
Authority
GB
United Kingdom
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
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
Application number
GB8022605A
Other versions
GB2054622A (en
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.)
TDK Corp
Original Assignee
TDK 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
Priority claimed from JP8747879A external-priority patent/JPS5613522A/en
Priority claimed from JP8748079A external-priority patent/JPS5613524A/en
Priority claimed from JP8747779A external-priority patent/JPS5613521A/en
Priority claimed from JP8747979A external-priority patent/JPS5613523A/en
Priority claimed from JP8747679A external-priority patent/JPS5613520A/en
Priority claimed from JP8747579A external-priority patent/JPS5613519A/en
Application filed by TDK Corp filed Critical TDK Corp
Publication of GB2054622A publication Critical patent/GB2054622A/en
Application granted granted Critical
Publication of GB2054622B publication Critical patent/GB2054622B/en
Expired 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
GB8022605A 1979-07-12 1980-07-10 Magnetic recording medium Expired GB2054622B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP8747879A JPS5613522A (en) 1979-07-12 1979-07-12 Magnetic recording medium
JP8748079A JPS5613524A (en) 1979-07-12 1979-07-12 Magnetic recording medium
JP8747779A JPS5613521A (en) 1979-07-12 1979-07-12 Magnetic recording medium
JP8747979A JPS5613523A (en) 1979-07-12 1979-07-12 Magnetic recording medium
JP8747679A JPS5613520A (en) 1979-07-12 1979-07-12 Magnetic recording medium
JP8747579A JPS5613519A (en) 1979-07-12 1979-07-12 Magnetic recording medium

Publications (2)

Publication Number Publication Date
GB2054622A GB2054622A (en) 1981-02-18
GB2054622B true GB2054622B (en) 1983-04-07

Family

ID=27551713

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8022605A Expired GB2054622B (en) 1979-07-12 1980-07-10 Magnetic recording medium

Country Status (2)

Country Link
DE (1) DE3026357A1 (en)
GB (1) GB2054622B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5758227A (en) * 1980-09-25 1982-04-07 Tdk Corp Magnetic recording medium
JPS57169926A (en) * 1981-04-14 1982-10-19 Tdk Corp Magnetic recording medium
JPS5812131A (en) * 1981-07-13 1983-01-24 Sony Corp Magnetic recording medium
JPS5864627A (en) * 1981-10-15 1983-04-18 Sony Corp Magnetic recording medium
US4423115A (en) * 1981-10-23 1983-12-27 Tdk Electronics Co., Ltd. Magnetic recording medium
JPS595423A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPS595424A (en) * 1982-07-01 1984-01-12 Sony Corp Magnetic recording medium
JPS6079522A (en) * 1983-10-04 1985-05-07 Sony Corp Magnetic recording medium
JPS6095722A (en) * 1983-10-28 1985-05-29 Sony Corp Magnetic recording medium
DE4039749A1 (en) * 1990-12-13 1992-06-17 Basf Magnetics Gmbh MAGNETIC RECORDING DEVICE
DE4039748A1 (en) * 1990-12-13 1992-06-17 Basf Magnetics Gmbh MAGNETIC RECORDING CARRIERS
DE19734893A1 (en) * 1997-08-12 1999-02-18 Emtec Magnetics Gmbh Polyurethanes that can be produced without solvents and their use as binders for magnetic recording media

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152485A (en) * 1977-08-05 1979-05-01 Toyo Boseki Kabushiki Kaisha Magnetic recording medium

Also Published As

Publication number Publication date
DE3026357A1 (en) 1981-02-05
GB2054622A (en) 1981-02-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950710