CH597109A5 - - Google Patents

Info

Publication number: CH597109A5
Authority: CH; Switzerland

Application number

CH935775A

Inventor

Paul Mollard

Abel Rousset

Jacques Paris

Original Assignee

Anvar

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.)

1974-09-13

Filing date

1975-07-17

Publication date

1978-03-31

1975-07-17 Application filed by Anvar filed Critical Anvar

1975-09-05 Priority to US05/610,720 priority Critical patent/US3994819A/en

1978-03-31 Publication of CH597109A5 publication Critical patent/CH597109A5/xx

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
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Compounds Of Iron (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Hard Magnetic Materials (AREA)
Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

CH935775A 1974-09-13 1975-07-17 CH597109A5 (xx)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
US05/610,720 US3994819A (en)	1974-09-13	1975-09-05	Method for the preparation of acicular particles containing iron and other divalent metals

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7431738A FR2284580A2 (fr)	1974-09-13	1974-09-13	Procede de preparation de solutions solides d'oxydes de fer et de metaux bivalents tels que le cobalt, et produits obtenus

Publications (1)

Publication Number	Publication Date
CH597109A5 true CH597109A5 (xx)	1978-03-31

Family

ID=9143265

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH935775A CH597109A5 (xx)	1974-09-13	1975-07-17

Country Status (7)

Country	Link
JP (1)	JPS5919049B2 (xx)
CH (1)	CH597109A5 (xx)
DE (1)	DE2540758C2 (xx)
FR (1)	FR2284580A2 (xx)
GB (1)	GB1506218A (xx)
IT (1)	IT1048488B (xx)
NL (1)	NL183992C (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2587989B1 (fr) *	1985-09-30	1987-11-13	Centre Nat Rech Scient	Compositions particulaires d'oxalates de metaux ferromagnetiques, sous forme de particules aciculaires submicroniques, leur preparation et leur application

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB679172A (en) *	1948-04-23	1952-09-17	Standard Telephones Cables Ltd	Improvements in or relating to the production of metal or metal oxide powders and products therefrom

1974
- 1974-09-13 FR FR7431738A patent/FR2284580A2/fr active Granted
1975
- 1975-07-17 CH CH935775A patent/CH597109A5/xx not_active IP Right Cessation
- 1975-08-28 NL NL7510163A patent/NL183992C/xx active Search and Examination
- 1975-09-04 GB GB3640675A patent/GB1506218A/en not_active Expired
- 1975-09-09 IT IT2703875A patent/IT1048488B/it active
- 1975-09-12 DE DE19752540758 patent/DE2540758C2/de not_active Expired
- 1975-09-13 JP JP50110523A patent/JPS5919049B2/ja not_active Expired

Also Published As

Publication number	Publication date
DE2540758A1 (de)	1976-03-25
DE2540758C2 (de)	1982-11-04
FR2284580A2 (fr)	1976-04-09
GB1506218A (en)	1978-04-05
FR2284580B2 (xx)	1979-04-13
JPS5155800A (en)	1976-05-17
IT1048488B (it)	1980-11-20
NL7510163A (nl)	1976-03-16
NL183992B (nl)	1988-10-17
NL183992C (nl)	1989-03-16
JPS5919049B2 (ja)	1984-05-02

Publication	Publication Date	Title
FR2260746B1 (xx)	1980-06-27
FR2263010A1 (xx)	1975-10-03
FR2263247B3 (xx)	1977-11-10
AU7459074A (xx)	1976-04-29
AU485556B2 (xx)	1976-08-26
BG19966A1 (xx)	1975-10-30
BG19728A1 (xx)	1975-10-10
AU481119A (xx)	1976-02-05
AU481219A (xx)	1975-11-06
AU481265A (xx)	1976-05-13
AU481423A (xx)	1975-12-04
AU481545A (xx)	1976-01-22
AU481639A (xx)	1975-09-18
AU480463A (xx)	1976-01-08
AU480264A (xx)	1975-07-10
BE826215A (xx)	1975-06-30
BE833391A (xx)	1975-12-31
BG19643A1 (xx)	1975-10-10
BG20440A1 (xx)	1975-12-05
BG19692A1 (xx)	1975-10-10
BG20436A1 (xx)	1975-12-05
BG19746A1 (xx)	1975-10-10
BG19931A1 (xx)	1975-10-30
AU480247A (xx)	1975-09-25
BG20140A1 (xx)	1975-11-05

Legal Events

Date	Code	Title	Description
1991-12-31	PL	Patent ceased
2024-10-31	PL	Patent ceased