公开(公告)号：DE3866314D1

公开(公告)日：1992-01-02

申请号：DE3866314

申请日：1988-08-23

Applicant: SONY CORP

Inventor： OCHIAI YOSHITAKA ,  ASO KOICHI ,  HASHIMOTO SHIYUNICHI

IPC: G11B11/105 ,  G11B11/10 ,  G11B13/04

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

IPC: C22C45/02 ,  G11B5/127 ,  H01F1/153 ,  C22C38/24

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

IPC: C22F1/00 ,  C21D1/04 ,  C22C45/04 ,  H01F1/153 ,  C21D8/12

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.

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

IPC: C22F1/00 ,  C21D6/00 ,  C22C19/07 ,  C22C45/04 ,  C22F1/10 ,  H01F1/153 ,  C21D8/02

公开(公告)号：DE2839626A1

公开(公告)日：1979-03-22

申请号：DE2839626

申请日：1978-09-12

Applicant: SONY CORP

Inventor： ASO KOICHI ,  UEDAIRA SATORU ,  ITO SHIGEYASU ,  TAMURA HIDEMASA ,  MAKINO YOSHIMI

IPC: C22C45/02 ,  G11B5/127 ,  G11B5/147 ,  H01F1/153 ,  C22C38/00

公开(公告)号：DE69011066T2

公开(公告)日：1995-03-16

申请号：DE69011066

申请日：1990-12-28

Applicant: SONY CORP

Inventor： KATORI KENJI ,  HAYAKAWA MASATOSHI ,  ASO KOICHI ,  HAYASHI KAZUHIKO ,  KAJIWARA KAZUO

IPC: G11B5/187 ,  H01F10/14

公开(公告)号：DE69011066D1

公开(公告)日：1994-09-01

申请号：DE69011066

申请日：1990-12-28

Applicant: SONY CORP

Inventor： KATORI KENJI ,  HAYAKAWA MASATOSHI ,  ASO KOICHI ,  HAYASHI KAZUHIKO ,  KAJIWARA KAZUO

IPC: G11B5/187 ,  H01F10/14

公开(公告)号：DE3574519D1

公开(公告)日：1990-01-04

申请号：DE3574519

申请日：1985-09-09

Applicant: SONY CORP

Inventor： HAYASHI KAZUHIKO ,  OCHIAI YOSHITAKA ,  HAYAKAWA MASATOSHI ,  MATSUDA HIDEKI ,  ISHIKAWA WATARU ,  IWASAKI YOU ,  ASO KOICHI

IPC: G11B5/147 ,  H01F1/18 ,  H01F10/08 ,  G11B5/127

公开(公告)号：CA1263435A

公开(公告)日：1989-11-28

申请号：CA490058

申请日：1985-09-05

Applicant: SONY CORP

Inventor： HAYASHI KAZUHIKO ,  OCHIAI YOSHITAKA ,  HAYAKAWA MASATOSHI ,  MATSUDA HIDEKI ,  ISHIKAWA WATARU ,  IWASAKI YOU ,  ASO KOICHI

IPC: G11B5/147 ,  H01F1/18 ,  H01F1/02 ,  G11B5/127

Abstract: A magnetic structure having improved permeability characteristics at very high frequencies and comprising a plurality of magnetic metal layers, together with electrically insulating layers which are interposed between successive magnetic metal layers to form a laminate therewith, and at least one conductive strip electrically connecting together at least two of the magnetic metal layers, the conductive strip being of lesser width than the surface on which it is located, and serving to reduce eddy current losses.

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

IPC: C22C45/02 ,  G11B5/127 ,  H01F1/153 ,  C22C38/24

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.