NL172802C - Magnetisch registratiemedium. - Google Patents

Magnetisch registratiemedium.

Info

Publication number: NL172802C
Authority: NL; Netherlands
Prior art keywords: record medium; magnetic record; magnetic; medium; record
Prior art date: 1971-02-09

Application number

NL7201635A

Other languages

English (en)

Other versions

NL172802B (nl

NL7201635A (nl

Original Assignee

Agfa Gevaert Nv

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.)

1971-02-09

Filing date

1972-02-08

Publication date

1983-10-17

1972-02-08 Application filed by Agfa Gevaert Nv filed Critical Agfa Gevaert Nv

1972-07-25 Publication of NL7201635A publication Critical patent/NL7201635A/xx

1983-05-16 Publication of NL172802B publication Critical patent/NL172802B/nl

1983-10-17 Application granted granted Critical

1983-10-17 Publication of NL172802C publication Critical patent/NL172802C/nl

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

NL7201635A 1971-02-09 1972-02-08 Magnetisch registratiemedium. NL172802C (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19712106030 DE2106030C3 (de)	1971-02-09	1971-02-09	Magnetisches Speichermedium

Publications (3)

Publication Number	Publication Date
NL7201635A NL7201635A (nl)	1972-07-25
NL172802B NL172802B (nl)	1983-05-16
NL172802C true NL172802C (nl)	1983-10-17

Family

ID=5798232

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7201635A NL172802C (nl)	1971-02-09	1972-02-08	Magnetisch registratiemedium.

Country Status (5)

Country	Link
BE (1)	BE778843A (nl)
DE (1)	DE2106030C3 (nl)
FR (1)	FR2124598B1 (nl)
GB (1)	GB1351543A (nl)
NL (1)	NL172802C (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5730121A (en) *	1980-07-31	1982-02-18	Tdk Corp	Magnetic recording medium
JPS57179943A (en) *	1981-04-27	1982-11-05	Tdk Corp	High-density magnetic recording medium

1971
- 1971-02-09 DE DE19712106030 patent/DE2106030C3/de not_active Expired
1972
- 1972-02-02 BE BE778843A patent/BE778843A/nl not_active IP Right Cessation
- 1972-02-08 NL NL7201635A patent/NL172802C/nl not_active IP Right Cessation
- 1972-02-09 FR FR7204358A patent/FR2124598B1/fr not_active Expired
- 1972-02-09 GB GB596672A patent/GB1351543A/en not_active Expired

Also Published As

Publication number	Publication date
NL172802B (nl)	1983-05-16
BE778843A (nl)	1972-08-02
DE2106030A1 (de)	1972-08-31
DE2106030C3 (de)	1979-11-15
NL7201635A (nl)	1972-07-25
DE2106030B2 (de)	1978-02-02
FR2124598A1 (nl)	1972-09-22
GB1351543A (en)	1974-05-01
FR2124598B1 (nl)	1975-10-24

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Legal Events

Date	Code	Title
1979-05-25	BB	A search report has been drawn up
1979-10-25	BC	A request for examination has been filed
1985-10-16	V1	Lapsed because of non-payment of the annual fee