JPS57205822A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS57205822A
JPS57205822A JP9031581A JP9031581A JPS57205822A JP S57205822 A JPS57205822 A JP S57205822A JP 9031581 A JP9031581 A JP 9031581A JP 9031581 A JP9031581 A JP 9031581A JP S57205822 A JPS57205822 A JP S57205822A
Authority
JP
Japan
Prior art keywords
magnetic
recording medium
coating film
magnetic coating
magnetic recording
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
JP9031581A
Other languages
Japanese (ja)
Inventor
Yutaka Takei
Masashi Somezawa
Toshio Itami
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9031581A priority Critical patent/JPS57205822A/en
Publication of JPS57205822A publication Critical patent/JPS57205822A/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer

Abstract

PURPOSE:To improve durability and a tape running property, by forming a crevasse having prescribed length, width, space and area ratio, on the surface of a magnetic coating film of a magnetic recording medium. CONSTITUTION:On a non-magnetic supporting body 1a, a magnetic coating material for forming a magnetic coating film 1b is applied, and in a state that this applied magnetic coating film is not dried yet and is capable of flowing, a magnetic field exceeding about 1,000 oersteds is applied in the orienting direction for >= about 100msec. Subsequently, a crevasse 1c of about 0.05-0.50mu in width and about 1.0-20.0mu in length is formed at intervals of about 0.3-5.0mu so as to become about 1.0-10.0% of an area of the cating film surface. In this way, it is possible to obtain a magnetic tape which is excellent in its durability and tape running property.
JP9031581A 1981-06-12 1981-06-12 Magnetic recording medium Pending JPS57205822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9031581A JPS57205822A (en) 1981-06-12 1981-06-12 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9031581A JPS57205822A (en) 1981-06-12 1981-06-12 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS57205822A true JPS57205822A (en) 1982-12-17

Family

ID=13995090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9031581A Pending JPS57205822A (en) 1981-06-12 1981-06-12 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57205822A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085418A (en) * 1983-10-14 1985-05-14 Matsushita Electric Ind Co Ltd Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085418A (en) * 1983-10-14 1985-05-14 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPH0546015B2 (en) * 1983-10-14 1993-07-12 Matsushita Electric Ind Co Ltd

Similar Documents

Publication Publication Date Title
JPS52102004A (en) Magnetic recording medium
KR860005336A (en) Ferromagnetic metal thin film magnetic recording medium and manufacturing method thereof
JPS5360605A (en) Magnetic recording medium
FR2308162A1 (en) PILOT ELEMENT FOR MAGNETIC RECORDING TAPE
JPS57205822A (en) Magnetic recording medium
JPS51138421A (en) Method of fabricating magnetic head
FR2344914A1 (en) MAGNETIC RECORDING MEDIUM AND ITS PREPARATION PROCESS
JPS5323608A (en) Magnet ic recording medium
JPS57191831A (en) Metallic thin film type magnetic recording medium and its manufacture
JPS5388704A (en) Magnetic recording medium
JPS51131303A (en) Magnetic recording medium
JPS57205827A (en) Manufacture of magnetic recording medium
JPS52103474A (en) Method of manufacture of polyester film as magnetic recording material
JPS5736435A (en) Vertical magnetizing medium
FR2343308A1 (en) MAGNETIC RECORDING MEDIUM AND PROCESS FOR ITS PREPARATION
FR2353115A1 (en) MAGNETIC TAPE AND RECORDING METHOD
JPS5236798A (en) Magnetic recording substance
JPS5387205A (en) Manufacture of magnetic recording medium
SU568074A1 (en) Magnetic tape guiding device
JPS52113216A (en) Magnetic head
JPS5517853A (en) Magnetresistance effect head
SU608194A1 (en) Magnetic tape running length counter
JPS538108A (en) Magnetic recording medium
JPS52141609A (en) Magnetic recording medium and its production
JPS55163630A (en) Magnetic recording medium