JPS57141027A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57141027A
JPS57141027A JP2590481A JP2590481A JPS57141027A JP S57141027 A JPS57141027 A JP S57141027A JP 2590481 A JP2590481 A JP 2590481A JP 2590481 A JP2590481 A JP 2590481A JP S57141027 A JPS57141027 A JP S57141027A
Authority
JP
Japan
Prior art keywords
angle
incidence
base material
changed continuously
magnetic
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
JP2590481A
Other languages
Japanese (ja)
Other versions
JPH0381202B2 (en
Inventor
Akio Yanai
Ryuji Shirahata
Tatsuji Kitamoto
Kiichiro Yamagishi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP2590481A priority Critical patent/JPS57141027A/en
Publication of JPS57141027A publication Critical patent/JPS57141027A/en
Publication of JPH0381202B2 publication Critical patent/JPH0381202B2/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation

Abstract

PURPOSE:To improve the adhesive strength to a base material, the durability, and the reproduced output, by forming a laminated magnetic thin film where the angle of vapor-deposition to the moving base material is changed continuously from a low angle of incidence to a high angle of incidence for the first layer and is changed continuously from a high angle of incidence to a low angle of incidence for the second layer. CONSTITUTION:While rotating a cooling can 22 clockwise to move a base material B such as a polyethylene terephthalate film, the angle of incidence is changed continuously from a low value to a high value to vapor-deposit magnetic metallic materials (Fe, Co, Ni, etc. and their alloy) 21 to the normal of the surface of the base material B to form the first magnetic film 1 with thickness of 900Angstrom . Next, the can 22 is rotated counterclockwise, and the angle of incidence is changed continuously from a high value to a low value to vapor-deposit the second magnetic film 2 with 900Angstrom thickness on the first magnetic film so that curves and inclined patterns of crystal columns of films 1 and 2 become as shown in 11 and 12 in figure. Thus, a magnetic tape superior in adhesive strength to the base material B, resistance to wear, etc. where a binder is not used is obtained.
JP2590481A 1981-02-24 1981-02-24 Magnetic recording medium Granted JPS57141027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2590481A JPS57141027A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2590481A JPS57141027A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57141027A true JPS57141027A (en) 1982-09-01
JPH0381202B2 JPH0381202B2 (en) 1991-12-27

Family

ID=12178766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2590481A Granted JPS57141027A (en) 1981-02-24 1981-02-24 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57141027A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5525398A (en) * 1991-03-22 1996-06-11 Tdk Corporation Perpendicular magnetic recording medium and method for making
US5549936A (en) * 1993-10-20 1996-08-27 Matsushita Electric Industrial Co., Ltd. Manufacturing method of magnetic recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143519A (en) * 1980-04-08 1981-11-09 Tdk Corp Magnetic recording medium and manufacturing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56143519A (en) * 1980-04-08 1981-11-09 Tdk Corp Magnetic recording medium and manufacturing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5525398A (en) * 1991-03-22 1996-06-11 Tdk Corporation Perpendicular magnetic recording medium and method for making
US5549936A (en) * 1993-10-20 1996-08-27 Matsushita Electric Industrial Co., Ltd. Manufacturing method of magnetic recording medium

Also Published As

Publication number Publication date
JPH0381202B2 (en) 1991-12-27

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