JPS52130307A - Bifacial magnetic field direction arrangement for magnetic disks - Google Patents

Bifacial magnetic field direction arrangement for magnetic disks

Info

Publication number
JPS52130307A
JPS52130307A JP4658676A JP4658676A JPS52130307A JP S52130307 A JPS52130307 A JP S52130307A JP 4658676 A JP4658676 A JP 4658676A JP 4658676 A JP4658676 A JP 4658676A JP S52130307 A JPS52130307 A JP S52130307A
Authority
JP
Japan
Prior art keywords
bifacial
field direction
direction arrangement
magnetic
magnetic field
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
JP4658676A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Chiba
Yoshiki Kato
Hajime Fukuya
Kazuichi Nagashiro
Mitsuo Tsunoda
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 JP4658676A priority Critical patent/JPS52130307A/en
Publication of JPS52130307A publication Critical patent/JPS52130307A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To improve disk performance by arranging the direction of the strong magnet composing particles along the circumference of the disk, locating the magnet on a specific position of the disk which is composed of magnetic coating.
COPYRIGHT: (C)1977,JPO&Japio
JP4658676A 1976-04-26 1976-04-26 Bifacial magnetic field direction arrangement for magnetic disks Pending JPS52130307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4658676A JPS52130307A (en) 1976-04-26 1976-04-26 Bifacial magnetic field direction arrangement for magnetic disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4658676A JPS52130307A (en) 1976-04-26 1976-04-26 Bifacial magnetic field direction arrangement for magnetic disks

Publications (1)

Publication Number Publication Date
JPS52130307A true JPS52130307A (en) 1977-11-01

Family

ID=12751393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4658676A Pending JPS52130307A (en) 1976-04-26 1976-04-26 Bifacial magnetic field direction arrangement for magnetic disks

Country Status (1)

Country Link
JP (1) JPS52130307A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130444A (en) * 1982-01-29 1983-08-03 Hitachi Ltd Orienting method of magnetic field of magnetic disc
JPS61187125A (en) * 1985-02-14 1986-08-20 Hitachi Ltd Method for orientating magnetic field of magnetic disk
JPH0581668A (en) * 1991-09-20 1993-04-02 Tdk Corp Method and device for producing magnetic hard disk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58130444A (en) * 1982-01-29 1983-08-03 Hitachi Ltd Orienting method of magnetic field of magnetic disc
JPS61187125A (en) * 1985-02-14 1986-08-20 Hitachi Ltd Method for orientating magnetic field of magnetic disk
JPH0330924B2 (en) * 1985-02-14 1991-05-01 Hitachi Ltd
JPH0581668A (en) * 1991-09-20 1993-04-02 Tdk Corp Method and device for producing magnetic hard disk

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