GB1232337A - - Google Patents
Info
- Publication number
- GB1232337A GB1232337A GB1232337DA GB1232337A GB 1232337 A GB1232337 A GB 1232337A GB 1232337D A GB1232337D A GB 1232337DA GB 1232337 A GB1232337 A GB 1232337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cro
- nov
- doped
- recording medium
- iron oxide
- Prior art date
- 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.)
- Expired
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 4
- 229910001566 austenite Inorganic materials 0.000 abstract 3
- 230000005291 magnetic effect Effects 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000004925 Acrylic resin Substances 0.000 abstract 1
- 229920000178 Acrylic resin Polymers 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 235000010724 Wisteria floribunda Nutrition 0.000 abstract 1
- 239000012461 cellulose resin Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 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
-
- 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
-
- 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
-
- 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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8106868A JPS5526528B1 (enrdf_load_stackoverflow) | 1968-11-06 | 1968-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1232337A true GB1232337A (enrdf_load_stackoverflow) | 1971-05-19 |
Family
ID=13736059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1232337D Expired GB1232337A (enrdf_load_stackoverflow) | 1968-11-06 | 1969-11-03 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5526528B1 (enrdf_load_stackoverflow) |
| DE (1) | DE1955699C3 (enrdf_load_stackoverflow) |
| GB (1) | GB1232337A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4860605A (enrdf_load_stackoverflow) * | 1971-11-26 | 1973-08-25 | ||
| JPS4955303A (enrdf_load_stackoverflow) * | 1972-09-28 | 1974-05-29 | ||
| EP0869481A1 (en) * | 1997-03-31 | 1998-10-07 | TDK Corporation | Method for producing magnetic recording medium |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574013B2 (enrdf_load_stackoverflow) * | 1974-07-31 | 1982-01-23 | ||
| JPS54107709A (en) * | 1978-02-10 | 1979-08-23 | Victor Co Of Japan Ltd | Magnetic recording material |
| DE3322746C2 (de) * | 1983-06-24 | 1994-06-23 | Basf Ag | Magnetische Aufzeichnungsträger |
| DE3825619A1 (de) * | 1988-07-28 | 1990-02-01 | Agfa Gevaert Ag | Verfahren zur herstellung eines magnetischen aufzeichnungstraegers |
| DE3927622A1 (de) * | 1989-08-22 | 1991-02-28 | Basf Ag | Magnetischer aufzeichnungstraeger |
-
1968
- 1968-11-06 JP JP8106868A patent/JPS5526528B1/ja active Pending
-
1969
- 1969-11-03 GB GB1232337D patent/GB1232337A/en not_active Expired
- 1969-11-05 DE DE19691955699 patent/DE1955699C3/de not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4860605A (enrdf_load_stackoverflow) * | 1971-11-26 | 1973-08-25 | ||
| JPS4955303A (enrdf_load_stackoverflow) * | 1972-09-28 | 1974-05-29 | ||
| EP0869481A1 (en) * | 1997-03-31 | 1998-10-07 | TDK Corporation | Method for producing magnetic recording medium |
| US6126990A (en) * | 1997-03-31 | 2000-10-03 | Tdk Corporation | Method for producing magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1955699C3 (de) | 1974-08-15 |
| JPS5526528B1 (enrdf_load_stackoverflow) | 1980-07-14 |
| DE1955699B2 (enrdf_load_stackoverflow) | 1974-01-17 |
| DE1955699A1 (de) | 1970-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |