JPH0289678U - - Google Patents

Info

Publication number

JPH0289678U

JPH0289678U JP1988167590U JP16759088U JPH0289678U JP H0289678 U JPH0289678 U JP H0289678U JP 1988167590 U JP1988167590 U JP 1988167590U JP 16759088 U JP16759088 U JP 16759088U JP H0289678 U JPH0289678 U JP H0289678U

Authority

JP

Japan

Prior art keywords

information recording

recording disk

optical information

hub

optical

Prior art date

1988-12-27

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

• Espacenet
• Global Dossier
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• 230000003287 optical effect Effects 0.000 claims description 21
• 230000005291 magnetic effect Effects 0.000 claims description 12
• 238000001179 sorption measurement Methods 0.000 claims description 8
• 125000006850 spacer group Chemical group 0.000 claims description 5
• 239000000758 substrate Substances 0.000 claims description 5
• 239000012790 adhesive layer Substances 0.000 claims description 3
• 238000003780 insertion Methods 0.000 claims description 2
• 230000037431 insertion Effects 0.000 claims description 2
• 239000000463 material Substances 0.000 claims description 2
• 230000002093 peripheral effect Effects 0.000 claims 2
• 238000005452 bending Methods 0.000 claims 1
• 230000005294 ferromagnetic effect Effects 0.000 claims 1
• 229910001220 stainless steel Inorganic materials 0.000 claims 1
• 239000010935 stainless steel Substances 0.000 claims 1
• 239000010410 layer Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 230000001681 protective effect Effects 0.000 description 1
• 239000010409 thin film Substances 0.000 description 1