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公开(公告)号：CA1110425A
公开(公告)日：1981-10-13
申请号：CA310059
申请日：1978-08-25
Applicant: SONY CORP
Inventor： UEDAIRA SATORU , ITO SHIGEYASU
Abstract: A method of manufacturing an amorphous alloy in which a molten mixture of raw materials making up the amorphous alloy is first prepared, and then introduced between a pair of oppositely rotating rolls where the molten material is rolled and quenched into a film. The conditions under which the rolling and quenching occur are carried out under the following conditions: where: Y is the roll pressure per unit width of the film in metric tons per centimeter, Co is a constant determined by Young's modulus and the thermal conductivity of the material of the rolls, A is the rotational speed of the rolls in r.p.m., R is the diameter of the rolls in centimeters, X is the thickness of the film in microns, Tcry is the crystallization temperature of the amorphous alloy in .degree.C, T is the temperature of the rolls in .degree.C, and where where the rolls have the diameters of R1 and R2 centimeters, respectively.
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公开(公告)号：DE2555826A1
公开(公告)日：1976-06-24
申请号：DE2555826
申请日：1975-12-11
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , UEDAIRA SATORU , ITO SHIGEYASU
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公开(公告)号：CA1142066A
公开(公告)日：1983-03-01
申请号：CA354502
申请日：1980-06-20
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , HAYAKAWA MASATOSHI , ASO KOICHI , UEDAIRA SATORU , ITO SHIGEYASU , HOTAI KAZUHIDE
Abstract: A method of manufacturing a high permeability amorphous magnetic alloy is disclosed. In the method amorphous magnetic alloy ribbon prepared by quenching a melt of raw material is annealed at an elevated temperature lower than a crystallization temperature of the alloy, in a magnetic field. During the annealing, the alloy ribbon and a direction of the magnetic field is relatively rotated with each other. The method is especially useful to an amorphous magnetic alloy having high saturation magnetic induction where a magnetic Curie temperature of the alloy usually exceeds the crystallization temperature of the alloy.
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公开(公告)号：DE2837432A1
公开(公告)日：1979-07-26
申请号：DE2837432
申请日：1978-08-28
Applicant: SONY CORP
Inventor： UEDAIRA SATORU , ITO SHIGEYASU
Abstract: A method of manufacturing an amorphous alloy in which a molten mixture of raw materials making up the amorphous alloy is first prepared, and then introduced between a pair of oppositely rotating rolls where the molten material is rolled and quenched into a film. The conditions under which the rolling and quenching occur are carried out under the following conditions: where: Y is the roll pressure per unit width of the film in metric tons per centimeter, Co is a constant determined by Young's modulus and the thermal conductivity of the material of the rolls, A is the rotational speed of the rolls in r.p.m., R is the diameter of the rolls in centimeters, X is the thickness of the film in microns, Tcry is the crystallization temperature of the amorphous alloy in DEG C., T is the temperature of the rolls in DEG C., and where where the rolls have the diameters of R1 and R2 centimeters, respectively.
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公开(公告)号：FR2561263A1
公开(公告)日：1985-09-20
申请号：FR8419822
申请日：1984-12-26
Applicant: SONY CORP
Inventor： ASO KOICHI , UEDAIRA SATORU , ITO SHIGEYASU , TAMURA HIDEMASA , MAKINO YOSHIMI
Abstract: a. Amorphous magnetic alloy. b. Characterised in that it comprises 2 to 20 % of ruthenium atoms or of ruthenium atoms and chromium, molybdenum, vanadium, aluminium or manganese atoms, the total of the ruthenium and chromium, molybdenum, vanadium, aluminium or manganese atoms representing between 2 and 20 % of alloy, 10 to 30 atomic % of atoms of at least one element capable of forming an amorphous structure, chosen from phosphorus, carbon, silicon, boron and germanium from 0 to 20 atomic % of cobalt and/or nickel. c. Alloy applicable to the manufacture of magnets for tape recorders and video recorders.
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Patent Agency Ranking
公开(公告)号：CA1086986A
公开(公告)日：1980-10-07
申请号：CA310895
申请日：1978-09-08
Applicant: SONY CORP
Inventor： ASO KOICHI , UEDAIRA SATORU , ITO SHIGEYASU , TAMURA HIDEMASA , MAKINO YOSHIMI
Abstract: An amorphous magentic alloy consists of 2 to 20 at % (atomic percent) of ruthenium atoms; 10 to 30 at% of atoms of at least one amorphous forming element selected from the group of phosphous, carbon, silicon, boron and germanium; and iron atoms as the predominant component of the residual.
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公开(公告)号：CA1033056A
公开(公告)日：1978-06-13
申请号：CA219917
申请日：1975-02-12
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , ITO SHIGEYASU
IPC: G11B5/706 , C09D5/23 , C09D7/12 , C22C5/00 , C22C5/04 , C22C19/03 , G03G5/16 , H01F1/04 , H01F1/047
Abstract: Magnetic alloy containing platinum, cobalt and nickel is disclosed which is suitable for use with magnetic recording medium, especially for use with an intermediate magnetic recording medium in thermo and magneto printing.
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公开(公告)号：FR2561263B1
公开(公告)日：1988-03-25
申请号：FR8419822
申请日：1984-12-26
Applicant: SONY CORP
Inventor： ASO KOICHI , UEDAIRA SATORU , ITO SHIGEYASU , TAMURA HIDEMASA , MAKINO YOSHIMI
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公开(公告)号：DE3023604A1
公开(公告)日：1981-01-15
申请号：DE3023604
申请日：1980-06-24
Applicant: SONY CORP
Inventor： MAKINO YOSHIMI , HAYAKAWA MASATOSHI , ASO KOICHI , UEDAIRA SATORU , ITO SHIGEYASU , HOTAI KAZUHIDE
Abstract: A method of manufacturing a high permeability amorphous magnetic alloy is disclosed. In the method amorphous magnetic alloy ribbon prepared by quenching a melt of raw material is annealed at an elevated temperature lower than a crystallization temperature of the alloy, in a magnetic field. During the annealing, the alloy ribbon and the direction of the magnetic field are relatively rotated with each other. The method is especially useful to an amorphous magnetic alloy having high saturation magnetic induction where the magnetic Curie temperature of the alloy usually exceeds the crystallization temperature of the alloy.
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公开(公告)号：DE3021224A1
公开(公告)日：1980-12-18
申请号：DE3021224
申请日：1980-06-04
Applicant: SONY CORP
Inventor： UEDAIRA SATORU , ITO SHIGEYASU , ASO KOICHI , HAYAKAWA MASATOSHI
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