JPS57183004A - Magnetically recording medium - Google Patents
Magnetically recording mediumInfo
- Publication number
- JPS57183004A JPS57183004A JP56068507A JP6850781A JPS57183004A JP S57183004 A JPS57183004 A JP S57183004A JP 56068507 A JP56068507 A JP 56068507A JP 6850781 A JP6850781 A JP 6850781A JP S57183004 A JPS57183004 A JP S57183004A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetically recording
- thin film
- contained
- abrasion resistance
- 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.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 2
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 229910052715 tantalum Inorganic materials 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- 239000011147 inorganic material Substances 0.000 abstract 1
- 238000007733 ion plating Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 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
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 238000001771 vacuum deposition Methods 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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
Abstract
PURPOSE: To contrive to enhance magnetic characteristic and abrasion resistance of a magnetically recording medium by a method wherein Co is made as the main component, and the specified quantity of one kind of Mo, Ta, W is made to be contained to form the ferromagnetic metal thin film.
CONSTITUTION: A plastic material of polyethylene terephthalate, polycarbonate, etc., a non-magnetic metal of aluminum, stainless steel, etc., or an inorganic material of glass, ceramic, etc., is made as the base material, and 70wt% or more of Co, and 0.1W5.0wt% of at least one kind element of Mo, Ta, W are made to be contained as the evaporation source at vacuum deposition and ion plating to form the ferromagnetic metal thin film. Accordingly the binderless type magnetically recording medium having superior magnetic characteristic and abrasion resistance can be obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068507A JPS57183004A (en) | 1981-05-07 | 1981-05-07 | Magnetically recording medium |
| DE19823216863 DE3216863A1 (en) | 1981-05-07 | 1982-05-05 | Magnetic recording material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56068507A JPS57183004A (en) | 1981-05-07 | 1981-05-07 | Magnetically recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57183004A true JPS57183004A (en) | 1982-11-11 |
Family
ID=13375682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56068507A Pending JPS57183004A (en) | 1981-05-07 | 1981-05-07 | Magnetically recording medium |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS57183004A (en) |
| DE (1) | DE3216863A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5988806A (en) * | 1982-11-12 | 1984-05-22 | Nec Corp | Magnetic storage body |
| JPS5988807A (en) * | 1982-11-12 | 1984-05-22 | Nec Corp | Magnetic storage body |
| JPS59116925A (en) * | 1982-12-22 | 1984-07-06 | Nec Corp | Magnetic storage medium |
| JPS59116924A (en) * | 1982-12-22 | 1984-07-06 | Nec Corp | Magnetic storage medium |
| JPS62185236A (en) * | 1986-02-10 | 1987-08-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS6339122A (en) * | 1986-08-01 | 1988-02-19 | Hitachi Ltd | Magnetic recording medium |
| JPH01256017A (en) * | 1988-04-04 | 1989-10-12 | Victor Co Of Japan Ltd | Magnetic recording medium |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544612A (en) * | 1982-09-22 | 1985-10-01 | Nippon Telegraph & Telephone Public Corporation | Iron oxide magnetic film and process for fabrication thereof |
| JPH0719369B2 (en) * | 1984-02-02 | 1995-03-06 | 日本ビクター株式会社 | Magnetic recording medium and manufacturing method thereof |
| EP0261240B1 (en) * | 1985-06-21 | 1992-05-06 | Sumitomo Metal Mining Company Limited | Magnetic recording medium |
| US5273836A (en) * | 1987-04-14 | 1993-12-28 | Yamaha Corporation | Magnetooptic recording material |
| EP0302706B1 (en) * | 1987-08-06 | 1994-07-27 | Sumitomo Metal Mining Company Limited | In-plane magnetic disc |
| KR970007795B1 (en) * | 1988-02-22 | 1997-05-16 | 소니 가부시끼 가이샤 | Magnetio recording medium |
| JP2913684B2 (en) * | 1989-08-28 | 1999-06-28 | ソニー株式会社 | Magnetic recording media |
| JP2974691B2 (en) * | 1989-08-30 | 1999-11-10 | ソニー株式会社 | Magnetic recording media |
| US5702876A (en) * | 1996-04-30 | 1997-12-30 | Minnesota Mining And Manufacturing Company | Photographic film base and color photographic material comprising a binderless magnetic layer |
| SG132550A1 (en) * | 2005-12-02 | 2007-06-28 | Sony Corp | Magnetic structures, methods of fabricating magnetic structures and micro-devices incorporating such magnetic structures |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105302A (en) * | 1979-02-07 | 1980-08-12 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1981
- 1981-05-07 JP JP56068507A patent/JPS57183004A/en active Pending
-
1982
- 1982-05-05 DE DE19823216863 patent/DE3216863A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55105302A (en) * | 1979-02-07 | 1980-08-12 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5988806A (en) * | 1982-11-12 | 1984-05-22 | Nec Corp | Magnetic storage body |
| JPS5988807A (en) * | 1982-11-12 | 1984-05-22 | Nec Corp | Magnetic storage body |
| JPH0580804B2 (en) * | 1982-11-12 | 1993-11-10 | Nippon Electric Co | |
| JPH0580805B2 (en) * | 1982-11-12 | 1993-11-10 | Nippon Electric Co | |
| JPS59116925A (en) * | 1982-12-22 | 1984-07-06 | Nec Corp | Magnetic storage medium |
| JPS59116924A (en) * | 1982-12-22 | 1984-07-06 | Nec Corp | Magnetic storage medium |
| JPH0556007B2 (en) * | 1982-12-22 | 1993-08-18 | Nippon Electric Co | |
| JPH0556006B2 (en) * | 1982-12-22 | 1993-08-18 | Nippon Electric Co | |
| JPS62185236A (en) * | 1986-02-10 | 1987-08-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
| JPS6339122A (en) * | 1986-08-01 | 1988-02-19 | Hitachi Ltd | Magnetic recording medium |
| JPH01256017A (en) * | 1988-04-04 | 1989-10-12 | Victor Co Of Japan Ltd | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3216863A1 (en) | 1982-11-25 |
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