JPS5629840A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5629840A
JPS5629840A JP10218279A JP10218279A JPS5629840A JP S5629840 A JPS5629840 A JP S5629840A JP 10218279 A JP10218279 A JP 10218279A JP 10218279 A JP10218279 A JP 10218279A JP S5629840 A JPS5629840 A JP S5629840A
Authority
JP
Japan
Prior art keywords
magnetic
recording medium
magnetic recording
particles
average particle
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
JP10218279A
Other languages
Japanese (ja)
Other versions
JPH028372B2 (en
Inventor
Noboru Takahashi
Setsuo Ozaki
Hiromasa Isono
Toshikazu Nishihara
Kenji Ikushima
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP10218279A priority Critical patent/JPS5629840A/en
Publication of JPS5629840A publication Critical patent/JPS5629840A/en
Publication of JPH028372B2 publication Critical patent/JPH028372B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the coloring phenomenon of the magnetic head surface, by containing the inorganic particles where the surface of particles is formed with the edge of an acute angle and the average particle diameter is given within specific range, in the magnetic layer of magnetic recording medium.
CONSTITUTION: In the magnetic layer of magnetic recording medium, the inorganic particles, in which the average particle diameter is about 1W3μm, the edge of an angle is formed on the surface of particles, and Mohs hardness is preferrably about ≥ 6, are included by about 2W20 wt.%. Thus, when the magnetic tape is loaded to the magnetic recording and reproducing unit and run, the coloring of magnetic head surface can be avoided, the surface of magnetic layer is smooth, dropout is less, and further, the magnetic characteristics such as maximum magnetic flux density can be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP10218279A 1979-08-13 1979-08-13 Magnetic recording medium Granted JPS5629840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10218279A JPS5629840A (en) 1979-08-13 1979-08-13 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10218279A JPS5629840A (en) 1979-08-13 1979-08-13 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5629840A true JPS5629840A (en) 1981-03-25
JPH028372B2 JPH028372B2 (en) 1990-02-23

Family

ID=14320523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10218279A Granted JPS5629840A (en) 1979-08-13 1979-08-13 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5629840A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157036A (en) * 1984-08-27 1986-03-22 Tdk Corp Magnetic recording medium
JPS61104427A (en) * 1984-10-25 1986-05-22 Sumitomo Chem Co Ltd Magnetic recording medium
JPH03150721A (en) * 1990-09-21 1991-06-27 Konica Corp Magnetic recording medium
US5399407A (en) * 1988-04-11 1995-03-21 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157036A (en) * 1984-08-27 1986-03-22 Tdk Corp Magnetic recording medium
JPS61104427A (en) * 1984-10-25 1986-05-22 Sumitomo Chem Co Ltd Magnetic recording medium
JPH0618074B2 (en) * 1984-10-25 1994-03-09 住友化学工業株式会社 Magnetic recording medium
US5399407A (en) * 1988-04-11 1995-03-21 Matsushita Electric Industrial Co., Ltd. Magnetic recording medium
JPH03150721A (en) * 1990-09-21 1991-06-27 Konica Corp Magnetic recording medium

Also Published As

Publication number Publication date
JPH028372B2 (en) 1990-02-23

Similar Documents

Publication Publication Date Title
JPS57154618A (en) Magnetic recording medium
JPS52122213A (en) Production of ferromagnetic metal powder
JPS5414711A (en) Magnetic recording medium
JPS5629840A (en) Magnetic recording medium
KR850005663A (en) Magnetic coating composition and magnetic recording medium containing iron carbide
JPS57176533A (en) Magnetic recording medium
JPS5629839A (en) Magnetic recording medium
JPS5315802A (en) High density magnetic recording material
JPS5651027A (en) Magnetic recording medium
JPS57179943A (en) High-density magnetic recording medium
JPS5249805A (en) Magnetic recording medium
JPS5474403A (en) Coating composite for magnetic disc
JPS5339705A (en) Magnetic recording medium
JPS5341202A (en) Novel magnetic recording medium
JPS54103005A (en) Magnetic disc coating composite
JPS57158028A (en) High density magnetic recording medium
JPS5693123A (en) Magnetic recording material
JPS5249803A (en) Magnetic recording medium
JPS5597029A (en) Magnetic tape
JPS5538637A (en) Erasing head
JPS551646A (en) Magnetic recording medium
JPS56127932A (en) Magnetic recording medium
JPS57158027A (en) High density magnetic recording medium
JPS57177074A (en) Magnetic coating material for magnetic recording medium and its preparation
JPS5577035A (en) Production of magnetic recording medium