JPS5733432A - Magnetic recording medium and its production - Google Patents

Magnetic recording medium and its production

Info

Publication number
JPS5733432A
JPS5733432A JP10669580A JP10669580A JPS5733432A JP S5733432 A JPS5733432 A JP S5733432A JP 10669580 A JP10669580 A JP 10669580A JP 10669580 A JP10669580 A JP 10669580A JP S5733432 A JPS5733432 A JP S5733432A
Authority
JP
Japan
Prior art keywords
ferromagnetic
ion source
vapor deposition
ferromagnetic particles
acceleration electrode
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
JP10669580A
Other languages
Japanese (ja)
Other versions
JPS6236285B2 (en
Inventor
Masahiro Hotta
Yoshiyuki Fukumoto
Yoichi Mikami
Yoji Kono
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP10669580A priority Critical patent/JPS5733432A/en
Publication of JPS5733432A publication Critical patent/JPS5733432A/en
Publication of JPS6236285B2 publication Critical patent/JPS6236285B2/ja
Granted 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers

Abstract

PURPOSE:To obtain a high-density recording magnetic recording medium which excels in the durability, by putting an oxide of a ferromagnetic material between the ferromagnetic thin films having different magnetization facilitating axes. CONSTITUTION:A vapor deposited layer 21 of a ferromagnetic metal in which the crystalline grains are grown in a specific direction is formed on a base material 7 which is sent to a take-up roll 72 from a supply roll 71 by giving a field acceleration and then vacuum vapor deposition to the ferromagnetic particles ionized by an ion source 61 and with an acceleration electrode 81. Then a vacuum vapor deposition is given to the ferromagnetic particles in the oxygen atmosphere using an ion source 63 and an acceleration electrode 82 to form a layer 31 with the oxide of the ferromagnetic particles. Thereafter, a vacuum vapor deposition is given to the ferromagnetic particles with use of an ion source 62 plus an acceleration electrode 84 to form a vapor deposited layer 21' of a ferromagnetic metal in which the crystalline grains are grown in a specific direction.
JP10669580A 1980-08-01 1980-08-01 Magnetic recording medium and its production Granted JPS5733432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10669580A JPS5733432A (en) 1980-08-01 1980-08-01 Magnetic recording medium and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10669580A JPS5733432A (en) 1980-08-01 1980-08-01 Magnetic recording medium and its production

Publications (2)

Publication Number Publication Date
JPS5733432A true JPS5733432A (en) 1982-02-23
JPS6236285B2 JPS6236285B2 (en) 1987-08-06

Family

ID=14440160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10669580A Granted JPS5733432A (en) 1980-08-01 1980-08-01 Magnetic recording medium and its production

Country Status (1)

Country Link
JP (1) JPS5733432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961104A (en) * 1982-09-30 1984-04-07 Seiko Epson Corp Multi-layer soft magnetic film
EP0516086A2 (en) * 1991-05-30 1992-12-02 Sony Corporation Magnetiic recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138409A (en) * 1975-05-27 1976-11-30 Tdk Corp Magnetic recording medium

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138409A (en) * 1975-05-27 1976-11-30 Tdk Corp Magnetic recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961104A (en) * 1982-09-30 1984-04-07 Seiko Epson Corp Multi-layer soft magnetic film
JPH056333B2 (en) * 1982-09-30 1993-01-26 Seiko Epson Corp
EP0516086A2 (en) * 1991-05-30 1992-12-02 Sony Corporation Magnetiic recording medium

Also Published As

Publication number Publication date
JPS6236285B2 (en) 1987-08-06

Similar Documents

Publication Publication Date Title
JPS5798133A (en) Magnetic recording medium
GB2127437A (en) Magnetic recording media
JPS5736434A (en) Magnetic recording medium and its production
GB1379360A (en) Manufacture of magnetic record carriers
JPS5733432A (en) Magnetic recording medium and its production
JPS5755531A (en) Vertical magnetic recording medium
JPS5724022A (en) Production of magnetic recording substance
EP0190854A3 (en) Method for producing a perpendicular magnetic recording medium
JPS56165933A (en) Production of magnetic recording body
JPS578919A (en) Manufacture of magnetic recording body
JPS6459627A (en) Production of magnetic recording medium
JPS57138035A (en) Magnetic recording medium
JPS57198535A (en) Magnetic recording medium
EP0066146B1 (en) Method for manufacturing magnetic recording medium
Trippel et al. Iron--Cobalt and Iron--Cobalt--Chromium Thin Film Recording Media, Deposited by E-Beam Evaporation at Oblique Angle of Incidence
JPS57147130A (en) Magnetic recording medium
JPS5737718A (en) Magnetic recording medium
JPS533975A (en) Production of magnetic recording material by evaporation of inclinated incidence angle
JPS5417812A (en) Production of magnetic recording media
JPS567236A (en) Production of magnetic recording medium
JPS5629844A (en) Manufacture for magnetic recording medium
JPS5684471A (en) Vacuum evaporation
JPS58125236A (en) Manufacture of magnetic recording medium
JPS57203209A (en) Magnetic recorder
JPS6031013B2 (en) Method for manufacturing magnetic recording media