CH558759A - Oxyde ferrique. - Google Patents

Oxyde ferrique.

Info

Publication number: CH558759A
Authority: CH; Switzerland
Prior art keywords: ferric oxide; ferric; oxide
Prior art date: 1971-03-16

Application number

CH364472A

Other languages

English (en)

Original Assignee

Eastman Kodak Co

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.)

1971-03-16

Filing date

1972-03-13

Publication date

1975-02-14

1972-03-13 Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co

1975-02-14 Publication of CH558759A publication Critical patent/CH558759A/fr

Links

UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title 1
LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title 1

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
- G11B5/70652—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 gamma - Fe2 O3
- G11B5/70668—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 gamma - Fe2 O3 containing a dopant
- G11B5/70673—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 gamma - Fe2 O3 containing a dopant containing Co
- 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
- 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
- G11B5/70652—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 gamma - Fe2 O3
- 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
- G11B5/70652—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 gamma - Fe2 O3
- G11B5/70657—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 gamma - Fe2 O3 with a skin
- 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
- G11B5/70652—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 gamma - Fe2 O3
- G11B5/70668—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 gamma - Fe2 O3 containing a dopant
- 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

CH364472A 1971-03-16 1972-03-13 Oxyde ferrique. CH558759A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR7109090A FR2129841A1 (en)	1971-03-16	1971-03-16	Magnetic registering material - with layer of needle shaped gamma ferric oxide with alkaline earth metal ions distributed over th
DE2318271A DE2318271A1 (de)	1971-03-16	1973-04-11	Kristalline gamma-eisen(iii)oxydteilchen, verfahren zu ihrer herstellung und ihre verwendung in hochleistungs-magnetaufzeichnungsmaterialien

Publications (1)

Publication Number	Publication Date
CH558759A true CH558759A (fr)	1975-02-14

Family

ID=25764960

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH364472A CH558759A (fr)	1971-03-16	1972-03-13	Oxyde ferrique.

Country Status (6)

Country	Link
BE (1)	BE780654A (fr)
CH (1)	CH558759A (fr)
DD (1)	DD97325A5 (fr)
DE (2)	DE2144553C2 (fr)
FR (1)	FR2129841A1 (fr)
NL (1)	NL171846C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6020807B2 (ja) *	1976-02-13	1985-05-23	富士写真フイルム株式会社	磁気記録体
FR2487326A1 (fr) *	1980-07-24	1982-01-29	Kodak Pathe	Procede de preparation de particules aciculaires d'oxyde de fer magnetique
DE3029203A1 (de) *	1980-08-01	1982-04-01	Basf Ag, 6700 Ludwigshafen	Nadelfoermiges magnetisches eisenoxid und verfahren zu seiner herstellung
US4778719A (en) *	1986-08-25	1988-10-18	Eastman Kodak Company	Particulate magnetic recording media and method of manufacture thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE891625C (de) *	1951-04-10	1953-10-01	Agfa Ag Fuer Photofabrikation	Verfahren zur Herstellung von Magnetogrammtraegern
US3082067A (en) *	1959-04-28	1963-03-19	Bayer Ag	Process for the production of isometric ferromagnetic gamma-ferric oxide
DE1204644B (de) *	1962-03-30	1965-11-11	Basf Ag	Verfahren zur Herstellung von insbesondere als Ausgangsmaterial fuer die Herstellung von hochkoerzitivem ª†-Eisen(III)-oxyd geeignetem nadelfoermigem Eisenoxydgelb, alpha-OH
FR1357866A (fr) *	1963-03-29	1964-04-10	Basf Ag	Procédé pour la production d'oxyde de fer jaune alpha aciculaire, convenant notamment comme matière de départ pour la production d'oxyde de fer-iii-gamma hautement coercitif
UST867010I4 (en) *	1969-04-28	1969-10-21		Defensive publication

1971
- 1971-03-16 FR FR7109090A patent/FR2129841A1/fr active Granted
- 1971-09-06 DE DE2144553A patent/DE2144553C2/de not_active Expired
- 1971-09-14 DD DD162319A patent/DD97325A5/xx unknown
1972
- 1972-03-13 CH CH364472A patent/CH558759A/fr not_active IP Right Cessation
- 1972-03-14 BE BE780654A patent/BE780654A/fr not_active IP Right Cessation
- 1972-03-16 NL NLAANVRAGE7203540,A patent/NL171846C/xx not_active IP Right Cessation
1973
- 1973-04-11 DE DE2318271A patent/DE2318271A1/de active Pending

Also Published As

Publication number	Publication date
DE2144553C2 (de)	1982-02-04
FR2129841A1 (en)	1972-11-03
FR2129841B1 (fr)	1975-02-21
DE2144553A1 (de)	1972-10-12
DE2318271A1 (de)	1974-10-31
DD97325A5 (fr)	1973-04-20
NL171846C (nl)	1983-05-16
NL171846B (nl)	1982-12-16
BE780654A (fr)	1972-09-14
NL7203540A (fr)	1972-09-19

Legal Events

Date	Code	Title	Description
1988-11-30	PL	Patent ceased

Publication	Publication Date	Title
BE783967A (nl)	1972-11-27	Galvaniseerinrichting.
NL167598C (nl)	1982-01-18	Injectiespuit.
CH555461A (de)	1974-10-31	Echafaudage.
CH554480A (de)	1974-09-30	Harmonikatuere.
CH547567A (de)	1974-03-29	Turbogenerater.
CH553706A (de)	1974-09-13	Foerderer.
CH556593A (de)	1974-11-29	Reacteur nucleaire.
NL169957C (nl)	1982-09-16	Injectiespuit.
CH551171A (de)	1974-07-15	Moebelteil.
NL150150B (nl)	1976-07-15	Polyfenyleenoxydesamenstelling.
CH556032A (de)	1974-11-15	Retroreflecteur.
BE780654A (fr)	1972-09-14	Nouvel oxyde ferrique
CH547101A (de)	1974-03-29	Trocart.
CH546077A (de)	1974-02-28	Catheter ventriculocerebral.
CH547215A (fr)	1974-03-29	Aerosol-ventil.
BE770100A (fr)	1971-12-01	Meerpas draadtrekmachine.
CH546033A (de)	1974-02-28	Melkbecher.
CH549273A (de)	1974-05-15	Mikroschalter.
ES180467Y (es)	1973-11-16	Estuche.
BE766327A (fr)	1971-09-16	Roeimecanisme.
BE772416A (fr)	1972-01-17	Brilmontuur.
BE772932A (fr)	1972-01-17	Zitmeubel.
DK127229B (da)	1973-10-08	Anæstesianlæg.
ES171858Y (es)	1972-07-16	Conmutador-pulsador.
ES165911Y (es)	1975-01-01	Pulsador.