JPS5629A - Vacuum-evaporated film type magnetic recording substance and its manufacture - Google Patents

Vacuum-evaporated film type magnetic recording substance and its manufacture

Info

Publication number
JPS5629A
JPS5629A JP7474279A JP7474279A JPS5629A JP S5629 A JPS5629 A JP S5629A JP 7474279 A JP7474279 A JP 7474279A JP 7474279 A JP7474279 A JP 7474279A JP S5629 A JPS5629 A JP S5629A
Authority
JP
Japan
Prior art keywords
metal
alloy
magnetic
recording substance
magnetic metal
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
JP7474279A
Other languages
Japanese (ja)
Inventor
Kyuzo Nakamura
Yoshifumi Oota
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.)
Ulvac Inc
Original Assignee
Ulvac 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 Ulvac Inc filed Critical Ulvac Inc
Priority to JP7474279A priority Critical patent/JPS5629A/en
Publication of JPS5629A publication Critical patent/JPS5629A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To obtain the said recording substance with less noise, by evaporating the magnetic metal and alloy on the nonmagnetic substance base with the tilted-emission evaporation method and evaporating and oxidizing the metal and alloy easily to be oxidized under the presence of oxygen.
CONSTITUTION: In the vacuum vessel, the nonmagnetic base tape 1 such as polyester film is run with a slope, and with the electron beam evaporation source 3 containing the magnetic metal A such as Co, Ni, Fe or their alloy and the electron beam evaporation source 3 containing the metal B filled with the metal or alloy easily subject to oxidation than the magnetic metal A or alloy such as Al, Cr, Si and Mn, the filled metal B is evaporated to the magnetic metal A with the ratio under 10wt%, and the filled metal B is oxidized with the oxygen introduced with a trace and evaporated on the tape 1. Thus, the objective magnetic recording substance taking the magnetic metal and alloy as major component and having the evaporation film in mixture of the metal and alloy easily subjected to oxidation can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP7474279A 1979-06-15 1979-06-15 Vacuum-evaporated film type magnetic recording substance and its manufacture Pending JPS5629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7474279A JPS5629A (en) 1979-06-15 1979-06-15 Vacuum-evaporated film type magnetic recording substance and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7474279A JPS5629A (en) 1979-06-15 1979-06-15 Vacuum-evaporated film type magnetic recording substance and its manufacture

Publications (1)

Publication Number Publication Date
JPS5629A true JPS5629A (en) 1981-01-06

Family

ID=13555994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7474279A Pending JPS5629A (en) 1979-06-15 1979-06-15 Vacuum-evaporated film type magnetic recording substance and its manufacture

Country Status (1)

Country Link
JP (1) JPS5629A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5788531A (en) * 1980-11-20 1982-06-02 Matsushita Electric Ind Co Ltd Manufacture for magnetic recording medium
JPS58165796A (en) * 1982-03-26 1983-09-30 Asahi Denka Kogyo Kk Concentration of long chain highly unsaturated fatty acid glyceride
JPS6035328A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS6035327A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS6035329A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS6035326A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS6035325A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS60154323A (en) * 1984-01-20 1985-08-14 Sony Corp Magnetic recording medium
JPS60163233A (en) * 1984-02-02 1985-08-26 Victor Co Of Japan Ltd Magnetic recording medium and its production
JPS61294629A (en) * 1985-06-21 1986-12-25 Sumitomo Metal Mining Co Ltd Magnetic recording medium
JPH03216811A (en) * 1990-01-16 1991-09-24 Internatl Business Mach Corp <Ibm> Magnetic recording medium of cobalt alloy with high saturated coercive force and low noise
JPH0573880A (en) * 1991-09-06 1993-03-26 Internatl Business Mach Corp <Ibm> Magnetic recording medium and manufacture thereof

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6156563B2 (en) * 1980-11-20 1986-12-03 Matsushita Electric Ind Co Ltd
JPS5788531A (en) * 1980-11-20 1982-06-02 Matsushita Electric Ind Co Ltd Manufacture for magnetic recording medium
JPS58165796A (en) * 1982-03-26 1983-09-30 Asahi Denka Kogyo Kk Concentration of long chain highly unsaturated fatty acid glyceride
JPH0416519B2 (en) * 1982-03-26 1992-03-24 Asahi Denka Kogyo Kk
JPH053654B2 (en) * 1983-08-06 1993-01-18 Kyanon Kk
JPS6035327A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPS6035325A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPH053657B2 (en) * 1983-08-06 1993-01-18 Kyanon Kk
JPH053655B2 (en) * 1983-08-06 1993-01-18 Kyanon Kk
JPS6035329A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPH053656B2 (en) * 1983-08-06 1993-01-18 Kyanon Kk
JPS6035328A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPH0364929B2 (en) * 1983-08-06 1991-10-09
JPS6035326A (en) * 1983-08-06 1985-02-23 Canon Inc Magnetic recording medium
JPH0475577B2 (en) * 1984-01-20 1992-12-01 Sony Corp
JPS60154323A (en) * 1984-01-20 1985-08-14 Sony Corp Magnetic recording medium
JPS60163233A (en) * 1984-02-02 1985-08-26 Victor Co Of Japan Ltd Magnetic recording medium and its production
JPS61294629A (en) * 1985-06-21 1986-12-25 Sumitomo Metal Mining Co Ltd Magnetic recording medium
JPH03216811A (en) * 1990-01-16 1991-09-24 Internatl Business Mach Corp <Ibm> Magnetic recording medium of cobalt alloy with high saturated coercive force and low noise
JPH0573880A (en) * 1991-09-06 1993-03-26 Internatl Business Mach Corp <Ibm> Magnetic recording medium and manufacture thereof
US5516547A (en) * 1991-09-06 1996-05-14 International Business Machines Corporation Method for fabricating magnetic recording medium

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