[go: up one dir, main page]

JPS5651027A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5651027A
JPS5651027A JP12749979A JP12749979A JPS5651027A JP S5651027 A JPS5651027 A JP S5651027A JP 12749979 A JP12749979 A JP 12749979A JP 12749979 A JP12749979 A JP 12749979A JP S5651027 A JPS5651027 A JP S5651027A
Authority
JP
Japan
Prior art keywords
carbon black
recording medium
magnetic recording
dispersibility
ratio
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
JP12749979A
Other languages
Japanese (ja)
Inventor
Seiji Wataya
Takeshi Matsuura
Akira Morioka
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 JP12749979A priority Critical patent/JPS5651027A/en
Publication of JPS5651027A publication Critical patent/JPS5651027A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE: To increase the SN ratio, by improving the dispersibility of carbon black, through containing a specific carbon black in a magnetic layer.
CONSTITUTION: By containing a carbon black including 3wt% or more of voltage matter in a magnetic substance layer, the dispersibility of the carbon black is made excellent and the smoothness of the surface of magnetic substance layer can be improved. Even if the amount of carbon black used is more, the SN ratio can be increased.
COPYRIGHT: (C)1981,JPO&Japio
JP12749979A 1979-10-02 1979-10-02 Magnetic recording medium Pending JPS5651027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12749979A JPS5651027A (en) 1979-10-02 1979-10-02 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12749979A JPS5651027A (en) 1979-10-02 1979-10-02 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5651027A true JPS5651027A (en) 1981-05-08

Family

ID=14961473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12749979A Pending JPS5651027A (en) 1979-10-02 1979-10-02 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5651027A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595429A (en) * 1982-06-30 1984-01-12 Hitachi Maxell Ltd Magnetic recording medium
JPS5919234A (en) * 1982-07-26 1984-01-31 Fuji Photo Film Co Ltd Magnetic recording body
JPS5975432A (en) * 1982-10-22 1984-04-28 Fuji Photo Film Co Ltd Magnetic recording body
JPS61919A (en) * 1984-06-13 1986-01-06 Hitachi Maxell Ltd Magnetic recording medium
JPS6159624A (en) * 1984-08-29 1986-03-27 Hitachi Maxell Ltd Magnetic recording medium
JPS61177631A (en) * 1985-01-31 1986-08-09 Konishiroku Photo Ind Co Ltd Magnetic recording medium
US4774147A (en) * 1984-06-15 1988-09-27 Hitachi Maxell, Ltd. Magnetic recording medium

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595429A (en) * 1982-06-30 1984-01-12 Hitachi Maxell Ltd Magnetic recording medium
JPS6331856B2 (en) * 1982-06-30 1988-06-27 Hitachi Maxell
JPS5919234A (en) * 1982-07-26 1984-01-31 Fuji Photo Film Co Ltd Magnetic recording body
JPH0479057B2 (en) * 1982-07-26 1992-12-14 Fuji Photo Film Co Ltd
JPS5975432A (en) * 1982-10-22 1984-04-28 Fuji Photo Film Co Ltd Magnetic recording body
JPH0479059B2 (en) * 1982-10-22 1992-12-14 Fuji Photo Film Co Ltd
JPS61919A (en) * 1984-06-13 1986-01-06 Hitachi Maxell Ltd Magnetic recording medium
US4774147A (en) * 1984-06-15 1988-09-27 Hitachi Maxell, Ltd. Magnetic recording medium
JPS6159624A (en) * 1984-08-29 1986-03-27 Hitachi Maxell Ltd Magnetic recording medium
JPS61177631A (en) * 1985-01-31 1986-08-09 Konishiroku Photo Ind Co Ltd Magnetic recording medium
JPH0533455B2 (en) * 1985-01-31 1993-05-19 Konishiroku Photo Ind

Similar Documents

Publication Publication Date Title
JPS5423517A (en) Floating head slider
JPS5288307A (en) Magnetic recording medium
JPS53143206A (en) Magnetic disc
JPS51134633A (en) Recording medium
JPS5651027A (en) Magnetic recording medium
JPS5238201A (en) Magnetic recording body
JPS57176533A (en) Magnetic recording medium
KR860000631A (en) Magnetic recording media
JPS5315802A (en) High density magnetic recording material
JPS5651025A (en) Magnetic recording medium
JPS5413997A (en) Magnetic recording medium and its manufacture
JPS5249805A (en) Magnetic recording medium
JPS5322725A (en) Magnetic head and its production
JPS53139511A (en) Magnetic recording medium
JPS5243405A (en) Magnetic recording media
JPS54123919A (en) Lubricant for magnetic recording
JPS53119017A (en) Capacity conversion type information recording medium
JPS51149006A (en) High density magnetic recording tape sheet
JPS5383707A (en) Magnetic recording medium composition and preparation thereof
JPS5629840A (en) Magnetic recording medium
JPS5330800A (en) Peparing magnetic thin film
JPS5249803A (en) Magnetic recording medium
JPS52117642A (en) Heat-sensitive recording head
JPS5249804A (en) Magnetic recording medium
JPS5496034A (en) Electrophotographic toner