JPS5727438A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS5727438A
JPS5727438A JP9993380A JP9993380A JPS5727438A JP S5727438 A JPS5727438 A JP S5727438A JP 9993380 A JP9993380 A JP 9993380A JP 9993380 A JP9993380 A JP 9993380A JP S5727438 A JPS5727438 A JP S5727438A
Authority
JP
Japan
Prior art keywords
layer
magnetic disk
disk
liquid lubricant
disk device
Prior art date
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.)
Granted
Application number
JP9993380A
Other languages
Japanese (ja)
Other versions
JPH0145139B2 (en
Inventor
Yoshinori Takeuchi
Katsuyuki Tanaka
Yoshihiko Miyake
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9993380A priority Critical patent/JPS5727438A/en
Publication of JPS5727438A publication Critical patent/JPS5727438A/en
Publication of JPH0145139B2 publication Critical patent/JPH0145139B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lubricants (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To prevent both the wear and the damage on the surface of a magnetic disk and thus increase the lifetime of a magnetic disk device, by avoiding the exhaustion of the lubricant on the surface of the magnetic disk.
CONSTITUTION: A magnetic disk 3A consists of a porous layer 9 provided at the center part of a disk substrate 4 and filled with the liquid lubricant, a coated layer 10 formed by applying the plating or sputtering process on the surface excluding an outer peripheral part 9A of the layer 9, a magnetic film 5 formed on the surface of the substrate 4 excluding the layer 9, and a lubrication layer 6 formed on the surface of the film 5 by the liquid lubricant. Such disk 3A is fixed to a spindle 2, and thus the liquid lubricant stored in the layer 9 oozes out gradually from the part 9A according to the rotation of the disk 3A and by the centrifugal force.
COPYRIGHT: (C)1982,JPO&Japio
JP9993380A 1980-07-23 1980-07-23 Magnetic disk device Granted JPS5727438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9993380A JPS5727438A (en) 1980-07-23 1980-07-23 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9993380A JPS5727438A (en) 1980-07-23 1980-07-23 Magnetic disk device

Publications (2)

Publication Number Publication Date
JPS5727438A true JPS5727438A (en) 1982-02-13
JPH0145139B2 JPH0145139B2 (en) 1989-10-02

Family

ID=14260523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9993380A Granted JPS5727438A (en) 1980-07-23 1980-07-23 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS5727438A (en)

Also Published As

Publication number Publication date
JPH0145139B2 (en) 1989-10-02

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