JPS6038727A - Magnetic recording medium and its manufacture - Google Patents

Magnetic recording medium and its manufacture

Info

Publication number
JPS6038727A
JPS6038727A JP14519383A JP14519383A JPS6038727A JP S6038727 A JPS6038727 A JP S6038727A JP 14519383 A JP14519383 A JP 14519383A JP 14519383 A JP14519383 A JP 14519383A JP S6038727 A JPS6038727 A JP S6038727A
Authority
JP
Japan
Prior art keywords
layer
plasma
electrode
recording medium
magnetic
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
JP14519383A
Other languages
Japanese (ja)
Other versions
JPH0325849B2 (en
Inventor
Sota Kawakami
Hidenori Murata
Shinsaku Nagaoka
Original Assignee
Konishiroku Photo Ind Co 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 Konishiroku Photo Ind Co Ltd filed Critical Konishiroku Photo Ind Co Ltd
Priority to JP14519383A priority Critical patent/JPH0325849B2/ja
Publication of JPS6038727A publication Critical patent/JPS6038727A/en
Publication of JPH0325849B2 publication Critical patent/JPH0325849B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/72Protective coatings, e.g. anti-static or antifriction

Abstract

PURPOSE:To obtain a thin film type magnetic recording medium havng an overcoat layer with superior wear and corrosion resistances by forming an org. plasma-polymerized layer contg. silicon on a magnetic layer so that the refractive index is adjusted to a specified value or above. CONSTITUTION:A support 10 having a magnetic metallic (alloy) film vapor-depodited on a polyethylene terephthalate film is sent from a sending reel 11 in a sending chamer 3 to a winding reel 13 through an electric discharge chamber 2. In the chamber 2, a mixture of a compound contg. silicon such as vinyltrimethoxysilane with O2, N2 and H2 as plasma-nonpolymerizable gases is fed from small holes in the edge of an upper electrode 6 to the chamber 2 through the slender pipe of the electrode 6, gaseous Ar or the like is sent from inlets 14 as required, and high frequency power is applied to a lower electrode 7 to form an evercoat layer of an org. plasma-polymerized substance contg. Si and having >=1.45 refractive index on the magnetic film. The thickness of the overcoat layer is 20-1,000Angstrom . Thus, a magnetic recording medium having a small spacing loss and superior traveling performance without reducing the reproduction output is obtd.
JP14519383A 1983-08-09 1983-08-09 Expired - Lifetime JPH0325849B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14519383A JPH0325849B2 (en) 1983-08-09 1983-08-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14519383A JPH0325849B2 (en) 1983-08-09 1983-08-09

Publications (2)

Publication Number Publication Date
JPS6038727A true JPS6038727A (en) 1985-02-28
JPH0325849B2 JPH0325849B2 (en) 1991-04-09

Family

ID=15379572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14519383A Expired - Lifetime JPH0325849B2 (en) 1983-08-09 1983-08-09

Country Status (1)

Country Link
JP (1) JPH0325849B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057536A (en) * 1983-09-08 1985-04-03 Hitachi Maxell Ltd Magnetic recording medium
JPS62153996A (en) * 1985-12-27 1987-07-08 Nippon Musical Instruments Mfg Panel unit for electronic musical apparatus
US5904952A (en) * 1987-07-15 1999-05-18 The Boc Group, Inc. Method of plasma enhanced silicon oxide deposition
EP1109947A1 (en) * 1998-07-27 2001-06-27 Cyndi Brodbeck Hardcoats for flat panel display substrates

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057536A (en) * 1983-09-08 1985-04-03 Hitachi Maxell Ltd Magnetic recording medium
JPH0576097B2 (en) * 1983-09-08 1993-10-21 Hitachi Maxell
JPS62153996A (en) * 1985-12-27 1987-07-08 Nippon Musical Instruments Mfg Panel unit for electronic musical apparatus
US5904952A (en) * 1987-07-15 1999-05-18 The Boc Group, Inc. Method of plasma enhanced silicon oxide deposition
EP1109947A1 (en) * 1998-07-27 2001-06-27 Cyndi Brodbeck Hardcoats for flat panel display substrates
EP1109947A4 (en) * 1998-07-27 2004-09-22 Bekaert Sa Nv Hardcoats for flat panel display substrates

Also Published As

Publication number Publication date
JPH0325849B2 (en) 1991-04-09

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