JPH0441457Y2 - - Google Patents
Info
- Publication number
- JPH0441457Y2 JPH0441457Y2 JP11960685U JP11960685U JPH0441457Y2 JP H0441457 Y2 JPH0441457 Y2 JP H0441457Y2 JP 11960685 U JP11960685 U JP 11960685U JP 11960685 U JP11960685 U JP 11960685U JP H0441457 Y2 JPH0441457 Y2 JP H0441457Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- disk
- magnetic disk
- groove
- radial direction
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000000758 substrate Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11960685U JPH0441457Y2 (US08124317-20120228-C00060.png) | 1985-08-03 | 1985-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11960685U JPH0441457Y2 (US08124317-20120228-C00060.png) | 1985-08-03 | 1985-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6229623U JPS6229623U (US08124317-20120228-C00060.png) | 1987-02-23 |
| JPH0441457Y2 true JPH0441457Y2 (US08124317-20120228-C00060.png) | 1992-09-29 |
Family
ID=31007134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11960685U Expired JPH0441457Y2 (US08124317-20120228-C00060.png) | 1985-08-03 | 1985-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441457Y2 (US08124317-20120228-C00060.png) |
-
1985
- 1985-08-03 JP JP11960685U patent/JPH0441457Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6229623U (US08124317-20120228-C00060.png) | 1987-02-23 |
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