JPS6161615U - - Google Patents
Info
- Publication number
- JPS6161615U JPS6161615U JP14578084U JP14578084U JPS6161615U JP S6161615 U JPS6161615 U JP S6161615U JP 14578084 U JP14578084 U JP 14578084U JP 14578084 U JP14578084 U JP 14578084U JP S6161615 U JPS6161615 U JP S6161615U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- recording medium
- medium according
- film
- vent hole
- 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
- 239000010408 film Substances 0.000 claims 4
- 239000000758 substrate Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
- -1 polyethylene terephthalate Polymers 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Description
第１図は本考案の一実施例のリム部の部分断面
図、第２図は従来の媒体の簡略化した断面図。
１はボス部、２はリム部、３ａ，３ｂは空気抜
き孔、１０は基体、２０はフレキシブルな記録膜
。
FIG. 1 is a partial sectional view of a rim portion of an embodiment of the present invention, and FIG. 2 is a simplified sectional view of a conventional medium. 1 is a boss portion, 2 is a rim portion, 3a and 3b are air vent holes, 10 is a base body, and 20 is a flexible recording film.
Claims (1)
の前記ボス部と前記リム部に、フレキシブル基板
面に磁気録層を形成したフレキシブル記録膜を展
張し、保持し磁気録媒体において、前記基体とフ
レキシブル記録膜の間に形成される空気溜りに連
通する空気抜き孔を形成したことを特徴とする磁
気録媒体。 ２ 前記空気抜き孔を前記記録膜のリム部近辺に
開口させた実用新案登録請求の範囲第１項記載の
磁気記録媒体。 ３ 前記空気抜き孔を前記リム部を外周面に開口
せしめた実用新案登録請求の範囲第１項若しくは
第２項記載の磁気記録媒体。 ４ 前記フレキシブル基板がポリエチレンテレフ
タレートフイルムである実用新案登録請求の範囲
第１項、第２項若しくは第３項記載の磁気記録媒
体。 ５ 前記磁気記録層が垂直磁気異方性を有する金
属薄膜を形成した垂直磁気記録層である実用新案
登録請求の範囲第１項、第２項、第３項若しくは
第４項記載の磁気記録媒体。[Claims for Utility Model Registration] 1. A flexible recording film having a magnetic recording layer formed on the surface of a flexible substrate is spread and held on the boss portion and the rim portion of a disc-shaped substrate having a rotating boss portion and a peripheral rim portion. 1. A magnetic recording medium characterized in that an air vent hole is formed that communicates with an air pocket formed between the base body and the flexible recording film. 2. The magnetic recording medium according to claim 1, wherein the air vent hole is opened near the rim of the recording film. 3. The magnetic recording medium according to claim 1 or 2, wherein the air vent hole is opened on the outer peripheral surface of the rim portion. 4. The magnetic recording medium according to claim 1, 2, or 3, wherein the flexible substrate is a polyethylene terephthalate film. 5. The magnetic recording medium according to claim 1, 2, 3, or 4, wherein the magnetic recording layer is a perpendicular magnetic recording layer formed of a metal thin film having perpendicular magnetic anisotropy. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14578084U JPS6161615U (en) | 1984-09-28 | 1984-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14578084U JPS6161615U (en) | 1984-09-28 | 1984-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6161615U true JPS6161615U (en) | 1986-04-25 |
Family
ID=30704036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14578084U Pending JPS6161615U (en) | 1984-09-28 | 1984-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6161615U (en) |
-
1984
- 1984-09-28 JP JP14578084U patent/JPS6161615U/ja active Pending
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