JPS5733436A - High-performance and flexible magnetic medium - Google Patents

High-performance and flexible magnetic medium

Info

Publication number
JPS5733436A
JPS5733436A JP10646980A JP10646980A JPS5733436A JP S5733436 A JPS5733436 A JP S5733436A JP 10646980 A JP10646980 A JP 10646980A JP 10646980 A JP10646980 A JP 10646980A JP S5733436 A JPS5733436 A JP S5733436A
Authority
JP
Japan
Prior art keywords
film
disk
magnetic
nozzle
doughnut
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
JP10646980A
Other languages
Japanese (ja)
Inventor
Yoshiro Nakamatsu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP10646980A priority Critical patent/JPS5733436A/en
Publication of JPS5733436A publication Critical patent/JPS5733436A/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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a high-resolution and high-BPI magnetic medium containing a magnetic layer having a wedge-shaped section, by rotating a doughnut-shaped film blanked previously and applying the magnetic material on the surface of said film with a nozzle which moves back and forth in the radius direction of the film. CONSTITUTION:A doughnut disk 11 blanked out of a base film 1 is rotated, and the magnetic material is sprayed on the surface of the disk 11 through a nozzle 13 having a reciprocal movement so that a coated layer 23 becomes thicker toward the outer circumference of the disk 11. Then a reciprocal movement is given to a magnetic field generator 14 to carry out the orientation. A film disk 15 is heated and hardened to received a polishing with an unwoven fabric 18 and then a lubricating process. Thus a head contact face 22 has a high smoothness and high lubricity.
JP10646980A 1980-08-04 1980-08-04 High-performance and flexible magnetic medium Pending JPS5733436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10646980A JPS5733436A (en) 1980-08-04 1980-08-04 High-performance and flexible magnetic medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10646980A JPS5733436A (en) 1980-08-04 1980-08-04 High-performance and flexible magnetic medium

Publications (1)

Publication Number Publication Date
JPS5733436A true JPS5733436A (en) 1982-02-23

Family

ID=14434394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10646980A Pending JPS5733436A (en) 1980-08-04 1980-08-04 High-performance and flexible magnetic medium

Country Status (1)

Country Link
JP (1) JPS5733436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160137A1 (en) * 1983-04-28 1985-11-06 Poly-Disc Systems Inc. Recording member having a variable thickness recording layer
US5062090A (en) * 1990-06-26 1991-10-29 Citizen Watch Co., Ltd. Module for quartz watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160137A1 (en) * 1983-04-28 1985-11-06 Poly-Disc Systems Inc. Recording member having a variable thickness recording layer
US5062090A (en) * 1990-06-26 1991-10-29 Citizen Watch Co., Ltd. Module for quartz watch

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