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.)
MA Aluminum Corp
Original Assignee
Mitsubishi Aluminum Co Ltd
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 Mitsubishi Aluminum Co LtdfiledCriticalMitsubishi Aluminum Co Ltd
Priority to JP58068052ApriorityCriticalpatent/JPS59193539A/ja
Publication of JPS59193539ApublicationCriticalpatent/JPS59193539A/ja
Publication of JPH0316689B2publicationCriticalpatent/JPH0316689B2/ja
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/62—Record carriers characterised by the selection of the material
G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
G11B5/739—Magnetic recording media substrates
G11B5/73911—Inorganic substrates
G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
G11B5/73919—Aluminium or titanium elemental or alloy substrates