IT7825960A0 - Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo. - Google Patents
Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo.Info
- Publication number
- IT7825960A0 IT7825960A0 IT7825960A IT2596078A IT7825960A0 IT 7825960 A0 IT7825960 A0 IT 7825960A0 IT 7825960 A IT7825960 A IT 7825960A IT 2596078 A IT2596078 A IT 2596078A IT 7825960 A0 IT7825960 A0 IT 7825960A0
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- chromium dioxide
- ferromagnetic chromium
- stabilized ferromagnetic
- stabilized
- Prior art date
Links
- 229940090961 chromium dioxide Drugs 0.000 title 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 title 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 title 1
- 230000005294 ferromagnetic effect Effects 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
- G11B5/70636—CrO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT25960/78A IT1097025B (it) | 1978-07-21 | 1978-07-21 | Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo |
EP79301408A EP0007764B1 (en) | 1978-07-21 | 1979-07-16 | Stabilized ferromagnetic chromium dioxide and a process for preparing it |
DE7979301408T DE2960348D1 (en) | 1978-07-21 | 1979-07-16 | Stabilized ferromagnetic chromium dioxide and a process for preparing it |
US06/057,817 US4244932A (en) | 1978-07-21 | 1979-07-16 | Stabilized ferromagnetic chromium dioxide and process for obtaining same |
JP9250179A JPS5537485A (en) | 1978-07-21 | 1979-07-20 | Stabilized ferromagnetic chromium oxide and preparing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT25960/78A IT1097025B (it) | 1978-07-21 | 1978-07-21 | Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7825960A0 true IT7825960A0 (it) | 1978-07-21 |
IT1097025B IT1097025B (it) | 1985-08-26 |
Family
ID=11218275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT25960/78A IT1097025B (it) | 1978-07-21 | 1978-07-21 | Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo |
Country Status (5)
Country | Link |
---|---|
US (1) | US4244932A (it) |
EP (1) | EP0007764B1 (it) |
JP (1) | JPS5537485A (it) |
DE (1) | DE2960348D1 (it) |
IT (1) | IT1097025B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5295712A (en) * | 1976-02-07 | 1977-08-11 | Shinagawa Refractories Co | Stamping material for conduits |
DE3116257A1 (de) * | 1980-05-30 | 1982-01-07 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | "wertpapier mit echtheitsmerkmalen" |
DE3263019D1 (en) * | 1981-10-26 | 1985-05-15 | Du Pont | Surface modified ferromagnetic chromium dioxide |
DE3610411A1 (de) * | 1986-03-27 | 1987-10-01 | Basf Ag | Verfahren zur stabilisierung von nadelfoermigem ferromagnetischem chromdioxid |
US7147916B2 (en) * | 2001-09-03 | 2006-12-12 | Sony Corporation | Magnetic material, method for producing the same, and magnetic recording medium |
CN112374877B (zh) * | 2020-10-09 | 2022-05-13 | 河南师范大学 | 具有磁阻转换行为的CoFe2O4-CrO2复合材料的制备方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB859937A (en) * | 1959-03-25 | 1961-01-25 | Du Pont | Improvements in ferromagnetic materials and processes for their preparation |
FR1407333A (fr) * | 1963-07-24 | 1965-07-30 | Bayer Ag | Bioxyde de chrome ferromagnétique modifié |
US3904538A (en) * | 1969-02-12 | 1975-09-09 | Fuji Photo Film Co Ltd | Method of producing ferromagnetic chromium dioxides |
US3687726A (en) * | 1970-10-19 | 1972-08-29 | Du Pont | Alumina coated chromium dioxide |
DE2124812A1 (de) * | 1971-05-19 | 1972-11-30 | Bayer Ag | Verfahren zur Herstellung von ferromagnetischem Chromdioxid |
JPS5121200A (en) * | 1974-08-15 | 1976-02-20 | Nippon Chemical Ind | Anteikasareta kyojiseinisankakuromusoseibutsu |
FR2386486A1 (fr) * | 1977-04-07 | 1978-11-03 | Montedison Spa | Bioxyde de chrome ferromagnetique stabilise et son procede de preparation |
-
1978
- 1978-07-21 IT IT25960/78A patent/IT1097025B/it active
-
1979
- 1979-07-16 US US06/057,817 patent/US4244932A/en not_active Expired - Lifetime
- 1979-07-16 EP EP79301408A patent/EP0007764B1/en not_active Expired
- 1979-07-16 DE DE7979301408T patent/DE2960348D1/de not_active Expired
- 1979-07-20 JP JP9250179A patent/JPS5537485A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0007764A1 (en) | 1980-02-06 |
EP0007764B1 (en) | 1981-05-13 |
DE2960348D1 (en) | 1981-08-20 |
US4244932A (en) | 1981-01-13 |
JPS5537485A (en) | 1980-03-15 |
IT1097025B (it) | 1985-08-26 |
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