JPS5740767A - Information recording carrier and its manufacture - Google Patents

Information recording carrier and its manufacture

Info

Publication number
JPS5740767A
JPS5740767A JP11574780A JP11574780A JPS5740767A JP S5740767 A JPS5740767 A JP S5740767A JP 11574780 A JP11574780 A JP 11574780A JP 11574780 A JP11574780 A JP 11574780A JP S5740767 A JPS5740767 A JP S5740767A
Authority
JP
Japan
Prior art keywords
magnetic
recording carrier
parts
nonmagnetic
flat
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
JP11574780A
Other languages
Japanese (ja)
Inventor
Toshiji Fujita
Akihide Saito
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP11574780A priority Critical patent/JPS5740767A/en
Publication of JPS5740767A publication Critical patent/JPS5740767A/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
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • 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
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0026—Pulse recording
    • G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To improve an output signal by increasing a difference in magnetic resistance from a nonmagnetic part, by forming a manetic part so that the easy magnetization axis direction of particles of a magnetic material having magnetic anisotropy is perpendicular to the surface of the magnetic part of a recording carrier. CONSTITUTION:A recording carrier 1, such as a disk, consisting of pits 6 as nonmagnetic parts and flat parts 6 as magnetic parts is provided with the magnetic flat parts 5 so that the easy magnetization axis direction of magnetic material particles having magnetic anisotropy is perpendicular to the surfaces of the flat parts 5 of the recording carrier. Consequently, magnetic resistance at the time when a magnetic pickup 11 passes over the flat part 5 is made less than when an ordinary magnetic material is used, so a difference between the magnetic resistance of the magnetic part and that of a nonmagnetic part increases, thereby improving the reproduction output of the recording carrier 1.
JP11574780A 1980-08-22 1980-08-22 Information recording carrier and its manufacture Pending JPS5740767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11574780A JPS5740767A (en) 1980-08-22 1980-08-22 Information recording carrier and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11574780A JPS5740767A (en) 1980-08-22 1980-08-22 Information recording carrier and its manufacture

Publications (1)

Publication Number Publication Date
JPS5740767A true JPS5740767A (en) 1982-03-06

Family

ID=14670048

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11574780A Pending JPS5740767A (en) 1980-08-22 1980-08-22 Information recording carrier and its manufacture

Country Status (1)

Country Link
JP (1) JPS5740767A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512545A (en) * 1978-07-11 1980-01-29 Sony Corp Magnetic recording media

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512545A (en) * 1978-07-11 1980-01-29 Sony Corp Magnetic recording media

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