JPS5248304A - Magnetic disk - Google Patents

Magnetic disk

Info

Publication number
JPS5248304A
JPS5248304A JP12331175A JP12331175A JPS5248304A JP S5248304 A JPS5248304 A JP S5248304A JP 12331175 A JP12331175 A JP 12331175A JP 12331175 A JP12331175 A JP 12331175A JP S5248304 A JPS5248304 A JP S5248304A
Authority
JP
Japan
Prior art keywords
magnetic disk
cna
shortened
lowered
employed
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.)
Pending
Application number
JP12331175A
Other languages
Japanese (ja)
Inventor
Hatsuo Takahashi
Nobutake Ishibashi
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 JP12331175A priority Critical patent/JPS5248304A/en
Publication of JPS5248304A publication Critical patent/JPS5248304A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks

Landscapes

  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To provide a magnetic disk, in which time required in processing information can be shortened; its magnetic disk pack can be replaced, when a magnetic disk replaceable type is employed; and manufacturing costs cna be lowered.
JP12331175A 1975-10-15 1975-10-15 Magnetic disk Pending JPS5248304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12331175A JPS5248304A (en) 1975-10-15 1975-10-15 Magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12331175A JPS5248304A (en) 1975-10-15 1975-10-15 Magnetic disk

Publications (1)

Publication Number Publication Date
JPS5248304A true JPS5248304A (en) 1977-04-18

Family

ID=14857394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12331175A Pending JPS5248304A (en) 1975-10-15 1975-10-15 Magnetic disk

Country Status (1)

Country Link
JP (1) JPS5248304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06162887A (en) * 1992-11-25 1994-06-10 Toshiki Goto Touch electricity keyboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06162887A (en) * 1992-11-25 1994-06-10 Toshiki Goto Touch electricity keyboard

Similar Documents

Publication Publication Date Title
PT65248A (en) Improvement in magnetic disk information storage apparatu
JPS5235616A (en) Magnetic head
JPS5248304A (en) Magnetic disk
JPS5273709A (en) Magnetic disc device
JPS51114111A (en) Method of manufacturing magnetic heads
JPS5292710A (en) Magnetic head
JPS5227239A (en) Filter
JPS5227612A (en) Magnetic disc recording reproducer
JPS51150315A (en) Magnetic head
JPS5386255A (en) Time informing timepiece
JPS5227611A (en) Magnetic disc recording reproducer
JPS5237597A (en) Regeneration of active carbon
JPS5252602A (en) Record disc
JPS5321913A (en) Magnetic recording and reproducing apparatus
JPS51114112A (en) Tape recorder erasing heads and method of manufacture thereof
JPS5244488A (en) Milling cutter for coil margin
JPS5244108A (en) Code error detection equipment
JPS527705A (en) Recorder with automatic operation signal
JPS51129291A (en) Flow cell
JPS5219509A (en) Magnetic recording reproducing device
JPS5267311A (en) Selecting switch circuit for magnetic head
JPS5269605A (en) Card type recording and playback device
JPS5233703A (en) Method of evaluating boundary lubrication conditions of magnetic disk
JPS51138413A (en) Magnetic sheet recorder/reproducer
JPS5244121A (en) Magnetic card equipment containing multi-channel head