JPS4881091A - - Google Patents
Info
- Publication number
- JPS4881091A JPS4881091A JP47118610A JP11861072A JPS4881091A JP S4881091 A JPS4881091 A JP S4881091A JP 47118610 A JP47118610 A JP 47118610A JP 11861072 A JP11861072 A JP 11861072A JP S4881091 A JPS4881091 A JP S4881091A
- Authority
- JP
- Japan
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
-
- 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
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
-
- 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
-
- 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
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/42—Magnetic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Hard Magnetic Materials (AREA)
- Paints Or Removers (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00212627A US3843403A (en) | 1971-12-27 | 1971-12-27 | Methods of manufacturing ferromagnetic carbon modified chromium oxide and compositions and recording media containing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4881091A true JPS4881091A (OSRAM) | 1973-10-30 |
| JPS5548443B2 JPS5548443B2 (OSRAM) | 1980-12-05 |
Family
ID=22791818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11861072A Expired JPS5548443B2 (OSRAM) | 1971-12-27 | 1972-11-28 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3843403A (OSRAM) |
| JP (1) | JPS5548443B2 (OSRAM) |
| CA (1) | CA990062A (OSRAM) |
| CH (1) | CH580035A5 (OSRAM) |
| ES (1) | ES410005A1 (OSRAM) |
| FR (1) | FR2166221B1 (OSRAM) |
| GB (1) | GB1409090A (OSRAM) |
| IT (1) | IT967820B (OSRAM) |
| NL (1) | NL7215715A (OSRAM) |
| SE (1) | SE387194B (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021097198A (ja) * | 2019-12-18 | 2021-06-24 | トーラスエナジー株式会社 | フェライトコア及びその製造方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252758A (en) * | 1979-03-14 | 1981-02-24 | Akira Yamaguchi | Method of Producing a sintered chromium oxide body |
| DE3328719C2 (de) * | 1982-08-10 | 1985-07-25 | Victor Company Of Japan, Ltd., Yokohama, Kanagawa | Magnetisches Aufzeichnungsmaterial |
| JPS6315912U (OSRAM) * | 1986-07-15 | 1988-02-02 | ||
| JPH03123415U (OSRAM) * | 1990-03-28 | 1991-12-16 |
-
1971
- 1971-12-27 US US00212627A patent/US3843403A/en not_active Expired - Lifetime
-
1972
- 1972-09-25 IT IT29623/72A patent/IT967820B/it active
- 1972-11-21 NL NL7215715A patent/NL7215715A/xx not_active Application Discontinuation
- 1972-11-22 CH CH1700272A patent/CH580035A5/xx not_active IP Right Cessation
- 1972-11-28 JP JP11861072A patent/JPS5548443B2/ja not_active Expired
- 1972-11-29 GB GB5507972A patent/GB1409090A/en not_active Expired
- 1972-12-05 SE SE7215794A patent/SE387194B/xx unknown
- 1972-12-11 CA CA159,873A patent/CA990062A/en not_active Expired
- 1972-12-21 FR FR7247110A patent/FR2166221B1/fr not_active Expired
- 1972-12-23 ES ES410005A patent/ES410005A1/es not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021097198A (ja) * | 2019-12-18 | 2021-06-24 | トーラスエナジー株式会社 | フェライトコア及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CH580035A5 (OSRAM) | 1976-09-30 |
| GB1409090A (en) | 1975-10-08 |
| JPS5548443B2 (OSRAM) | 1980-12-05 |
| DE2259255A1 (de) | 1973-07-12 |
| FR2166221A1 (OSRAM) | 1973-08-10 |
| CA990062A (en) | 1976-06-01 |
| SE387194B (sv) | 1976-08-30 |
| ES410005A1 (es) | 1975-12-01 |
| DE2259255B2 (de) | 1975-11-13 |
| IT967820B (it) | 1974-03-11 |
| FR2166221B1 (OSRAM) | 1984-02-17 |
| NL7215715A (OSRAM) | 1973-06-29 |
| US3843403A (en) | 1974-10-22 |