JPS6442574U - - Google Patents

Info

Publication number

JPS6442574U

JPS6442574U JP1987136888U JP13688887U JPS6442574U JP S6442574 U JPS6442574 U JP S6442574U JP 1987136888 U JP1987136888 U JP 1987136888U JP 13688887 U JP13688887 U JP 13688887U JP S6442574 U JPS6442574 U JP S6442574U

Authority

JP

Japan

Prior art keywords

hub

synthetic resin

resin member

optical disk

convex portion

Prior art date

1987-09-08

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
• Discuss

• 230000003287 optical effect Effects 0.000 claims description 5
• 229920003002 synthetic resin Polymers 0.000 claims 5
• 239000000057 synthetic resin Substances 0.000 claims 5
• 230000002093 peripheral effect Effects 0.000 claims 2
• 230000007423 decrease Effects 0.000 claims 1
• 239000000696 magnetic material Substances 0.000 claims 1
• 125000006850 spacer group Chemical group 0.000 description 1
• 239000000758 substrate Substances 0.000 description 1

Cited By (1)