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.)
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TDK Corp
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TDK Corp
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Publication date
Application filed by TDK CorpfiledCriticalTDK Corp
Priority to JP1987184643UpriorityCriticalpatent/JPH0624051Y2/ja
Priority to US07/279,090prioritypatent/US5010435A/en
Publication of JPH01103068UpublicationCriticalpatent/JPH01103068U/ja
Priority to US07/609,621prioritypatent/US5057960A/en
Application grantedgrantedCritical
Publication of JPH0624051Y2publicationCriticalpatent/JPH0624051Y2/ja
Method of forming a magneto-optical disk hub in which the inner peripheral edge portion of the spindle opening is strengthened and made abrasion resistant
