JPS6117551Y2 - - Google Patents
Info
- Publication number
- JPS6117551Y2 JPS6117551Y2 JP1979052741U JP5274179U JPS6117551Y2 JP S6117551 Y2 JPS6117551 Y2 JP S6117551Y2 JP 1979052741 U JP1979052741 U JP 1979052741U JP 5274179 U JP5274179 U JP 5274179U JP S6117551 Y2 JPS6117551 Y2 JP S6117551Y2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- ring
- disk
- disc
- protection plate
- 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
- 239000000463 material Substances 0.000 claims description 36
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979052741U JPS6117551Y2 (enrdf_load_stackoverflow) | 1979-04-18 | 1979-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979052741U JPS6117551Y2 (enrdf_load_stackoverflow) | 1979-04-18 | 1979-04-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55153634U JPS55153634U (enrdf_load_stackoverflow) | 1980-11-06 |
| JPS6117551Y2 true JPS6117551Y2 (enrdf_load_stackoverflow) | 1986-05-29 |
Family
ID=28944491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979052741U Expired JPS6117551Y2 (enrdf_load_stackoverflow) | 1979-04-18 | 1979-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117551Y2 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2528216B1 (fr) * | 1982-06-08 | 1988-01-08 | Thomson Csf | Disque optique protege a porte-couche libre |
| JPS60226040A (ja) * | 1984-04-24 | 1985-11-11 | Daicel Chem Ind Ltd | 円盤状情報記録担体 |
-
1979
- 1979-04-18 JP JP1979052741U patent/JPS6117551Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55153634U (enrdf_load_stackoverflow) | 1980-11-06 |
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