JPH02135927U - - Google Patents
Info
- Publication number
- JPH02135927U JPH02135927U JP1989045048U JP4504889U JPH02135927U JP H02135927 U JPH02135927 U JP H02135927U JP 1989045048 U JP1989045048 U JP 1989045048U JP 4504889 U JP4504889 U JP 4504889U JP H02135927 U JPH02135927 U JP H02135927U
- Authority
- JP
- Japan
- Prior art keywords
- substrates
- circumferential spacer
- outer circumferential
- recording medium
- diameter
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989045048U JPH02135927U (nl) | 1989-04-19 | 1989-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989045048U JPH02135927U (nl) | 1989-04-19 | 1989-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135927U true JPH02135927U (nl) | 1990-11-13 |
Family
ID=31558889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989045048U Pending JPH02135927U (nl) | 1989-04-19 | 1989-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135927U (nl) |
-
1989
- 1989-04-19 JP JP1989045048U patent/JPH02135927U/ja active Pending