BE813834A - PROCESS FOR MANUFACTURING MAGNETIC RECORDING DISCS - Google Patents

PROCESS FOR MANUFACTURING MAGNETIC RECORDING DISCS

Info

Publication number: BE813834A
Authority: BE; Belgium
Prior art keywords: magnetic recording; manufacturing magnetic; recording discs; discs; manufacturing
Prior art date: 1973-04-17

Application number

BE143302A

Other languages

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.)

1973-04-17

Filing date

1974-04-17

Publication date

1974-10-17

1973-04-17 Priority claimed from DE19732319363 external-priority patent/DE2319363C3/en

1974-04-17 Application filed filed Critical

1974-10-17 Publication of BE813834A publication Critical patent/BE813834A/en

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
- G11B5/7023—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 polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins

BE143302A 1973-04-17 1974-04-17 PROCESS FOR MANUFACTURING MAGNETIC RECORDING DISCS BE813834A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19732319363 DE2319363C3 (en)		1973-04-17	Process for the production of magnetic recording disks

Publications (1)

Publication Number	Publication Date
BE813834A true BE813834A (en)	1974-10-17

Family

ID=5878370

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE143302A BE813834A (en)	1973-04-17	1974-04-17	PROCESS FOR MANUFACTURING MAGNETIC RECORDING DISCS

Country Status (6)

Country	Link
JP (1)	JPS5716413B2 (en)
BE (1)	BE813834A (en)
FR (1)	FR2226719B3 (en)
GB (1)	GB1466798A (en)
IT (1)	IT1005968B (en)
NL (1)	NL179616C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5693122A (en) *	1979-12-24	1981-07-28	Fujitsu Ltd	Magnetic recording medium having lubricated magnetic recording layer
JPS62182309U (en) *	1986-05-09	1987-11-19

1974
- 1974-04-09 NL NL7404833A patent/NL179616C/en not_active IP Right Cessation
- 1974-04-10 JP JP4012774A patent/JPS5716413B2/ja not_active Expired
- 1974-04-16 IT IT5041074A patent/IT1005968B/en active
- 1974-04-16 GB GB1642274A patent/GB1466798A/en not_active Expired
- 1974-04-17 BE BE143302A patent/BE813834A/en not_active IP Right Cessation
- 1974-04-17 FR FR7413308A patent/FR2226719B3/fr not_active Expired

Also Published As

Publication number	Publication date
NL179616C (en)	1986-10-01
FR2226719A1 (en)	1974-11-15
GB1466798A (en)	1977-03-09
DE2319363A1 (en)	1974-11-07
NL7404833A (en)	1974-10-21
NL179616B (en)	1986-05-01
FR2226719B3 (en)	1977-02-18
DE2319363B2 (en)	1977-06-30
JPS5716413B2 (en)	1982-04-05
JPS503309A (en)	1975-01-14
IT1005968B (en)	1976-09-30

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Legal Events

Date	Code	Title	Description
1990-10-31	RE	Patent lapsed	Owner name: BASF A.G. Effective date: 19900430

Date

Code

Title

Description

1990-10-31

Patent lapsed

Owner name: BASF A.G.

Effective date: 19900430