JPS6449121A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS6449121A
JPS6449121A JP20537487A JP20537487A JPS6449121A JP S6449121 A JPS6449121 A JP S6449121A JP 20537487 A JP20537487 A JP 20537487A JP 20537487 A JP20537487 A JP 20537487A JP S6449121 A JPS6449121 A JP S6449121A
Authority
JP
Japan
Prior art keywords
added
well
ratio
particles
disulfide
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
JP20537487A
Other languages
Japanese (ja)
Inventor
Hidenori Murata
Katsuyuki Takeda
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP20537487A priority Critical patent/JPS6449121A/en
Publication of JPS6449121A publication Critical patent/JPS6449121A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the sliding contact property with a head, etc., and to upgrade recording and reproducing characteristics, image quality, etc., by incorporating a prescribed ratio each of aluminum oxide particles and chromium oxide particles respectively having prescribed grain sizes into a magnetic layer. CONSTITUTION:Al2O3 particles having 0.1-0.5mum average grain size are added at 3-10pts.wt. ratio per 100pts.wt. solid content to the magnetic recording layer of a magnetic disk and further, Cr2O3 particles having 0.3-1.0mum average grain size are added at 0.5-5pts.wt. ratio thereto. Carbon black, silicone oil, graphite, Mo disulfide, W disulfide, monobasic fatty acid, etc., may be added as a lubricating agent thereto as well. An antistatic agent (for example, carbon black, graphite), etc., may be added thereto as well. Artificial corundum, fused alumina, silicon carbide, etc., may be added in addition to Al2O3 and Cr2O3 as a nonmagnetic polishing agent thereto as well.
JP20537487A 1987-08-19 1987-08-19 Magnetic recording medium Pending JPS6449121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20537487A JPS6449121A (en) 1987-08-19 1987-08-19 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20537487A JPS6449121A (en) 1987-08-19 1987-08-19 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6449121A true JPS6449121A (en) 1989-02-23

Family

ID=16505778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20537487A Pending JPS6449121A (en) 1987-08-19 1987-08-19 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6449121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03203019A (en) * 1989-12-28 1991-09-04 Konica Corp Discoid magnetic recording medium
JPH0668453A (en) * 1992-08-21 1994-03-11 Fuji Photo Film Co Ltd Flexible magnetic recording disk and its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03203019A (en) * 1989-12-28 1991-09-04 Konica Corp Discoid magnetic recording medium
JPH0668453A (en) * 1992-08-21 1994-03-11 Fuji Photo Film Co Ltd Flexible magnetic recording disk and its production

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