JPS57164419A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57164419A
JPS57164419A JP56048949A JP4894981A JPS57164419A JP S57164419 A JPS57164419 A JP S57164419A JP 56048949 A JP56048949 A JP 56048949A JP 4894981 A JP4894981 A JP 4894981A JP S57164419 A JPS57164419 A JP S57164419A
Authority
JP
Japan
Prior art keywords
magnetic
film
space
vapor
tape
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
JP56048949A
Other languages
Japanese (ja)
Other versions
JPH0315243B2 (en
Inventor
Kunio Wakai
Tsunemi Oiwa
Osamu Kitagami
Hideaki Niimi
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP56048949A priority Critical patent/JPS57164419A/en
Publication of JPS57164419A publication Critical patent/JPS57164419A/en
Publication of JPH0315243B2 publication Critical patent/JPH0315243B2/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

Abstract

PURPOSE:To obtain a tape which is satisfactory in follow-up property to a magnetic head, etc., and excellent in durability, by forming a magnetic meatllic film which has provided a space exceeding specific width, on the base with specific density, filling the space with a lubricant, and giving flexibility to the magnetic film. CONSTITUTION:For instance, a polyester base film is brought to plasma treatment under the pressure-reduced atmosphere of Ar and O2 mixing gas, and a film 1 which has worked a rough surface to a craped pattern whose plane roughness is about 0.02mu, on the surface is made. A magnetic film 2 is formed by slantingly vapor-depositing a metal such as Co, Ni, etc., or a magnetic metal such as an alloy consisting of said metals and Cu, Al, etc. In this way, as shown in the expanded drawing of a part II of a tape, a space 3 which is >=100Angstrom width and is formed >=1 or more in 20mu is formed on the magnetic layer 2 due to existence of a projection 6 on the base 1, and vapor-deposited parts 4, 4' of the magnetic layer 2 is cut separately. A magnetic layer 4 is formed with microscopic width (20-30Angstrom ) at a small angle (beta) against a vapor-depositing incident angle (alpha). The space 3 can be filled with a lubricant. In this way, it is possible to obtain a magnetic tape which is excellent in follow-up property and satisfactory in electromagnetic conversion characteristic.
JP56048949A 1981-03-31 1981-03-31 Magnetic recording medium Granted JPS57164419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048949A JPS57164419A (en) 1981-03-31 1981-03-31 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048949A JPS57164419A (en) 1981-03-31 1981-03-31 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57164419A true JPS57164419A (en) 1982-10-09
JPH0315243B2 JPH0315243B2 (en) 1991-02-28

Family

ID=12817522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048949A Granted JPS57164419A (en) 1981-03-31 1981-03-31 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57164419A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289915A (en) * 1986-06-10 1987-12-16 Matsushita Electric Ind Co Ltd Magnetic disk

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228304A (en) * 1975-08-28 1977-03-03 Fuji Photo Film Co Ltd Magnetic recording media
JPS563428A (en) * 1979-06-20 1981-01-14 Fuji Photo Film Co Ltd Magnetic recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228304A (en) * 1975-08-28 1977-03-03 Fuji Photo Film Co Ltd Magnetic recording media
JPS563428A (en) * 1979-06-20 1981-01-14 Fuji Photo Film Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62289915A (en) * 1986-06-10 1987-12-16 Matsushita Electric Ind Co Ltd Magnetic disk

Also Published As

Publication number Publication date
JPH0315243B2 (en) 1991-02-28

Similar Documents

Publication Publication Date Title
ES8504965A1 (en) Methods of forming a protective diffusion layer on nickel, cobalt and iron base alloys
ES8504966A1 (en) Methods of forming a protective diffusion layer on nickel, cobalt, and iron base alloys
CA2074114A1 (en) Slide member
JPS5729493A (en) Discharge recording medium
JPS57164419A (en) Magnetic recording medium
AU9077282A (en) Ni base super alloy with y (h) for gas turbine engines
JPS52105804A (en) Magnetic disc substrate
JPS5641372A (en) Surface covered ultra hard alloy member for cutting tool
JPS57158037A (en) Magnetic recording medium and its manufacture
JPS56156931A (en) Magnetic storage medium
JPS5745208A (en) Magnetic recording medium
JPS57195321A (en) Metallic thin film magnetic recording medium
JPS55100501A (en) Mirror plate
JPS52143838A (en) Recording method by laser beam
JPS56143538A (en) Manufacture of magnetic storage body
JPS5260604A (en) Magnetic disk
JPS54145505A (en) Magnetic recording medium
JPS5613518A (en) Magnetic recording medium
JPS55107785A (en) Preventing method for galvanic corrosion produced at contact part of different kind metallic material
JPS5358440A (en) Method of forming composite carbide layer of titanium and chromium on surface of ferrous alloy containing carbon
JPS5512519A (en) Magnetic recording media
JPS54147008A (en) Magnetic recording medium
JPS5331111A (en) Production of magnetic recording media
GB1243518A (en) Improvements in magnetic recording films of cobalt
Semjonow Laser Weld Surfacing of Cutting Tools With Metal Powders