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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta IncfiledCriticalKonica Minolta Inc
Priority to JP17665783ApriorityCriticalpatent/JPS6069819A/ja
Priority to US06/614,465prioritypatent/US4562117A/en
Publication of JPS6069819ApublicationCriticalpatent/JPS6069819A/ja
Publication of JPH0414415B2publicationCriticalpatent/JPH0414415B2/ja
Magnetic disk having a magnetic layer comprising a binder and ferromagnetic particles of specified crystallite size and surface area and in which the mechanical loss tangent, tan delta, is within a specified range