Inventor
ASO KOICHI
16 patents
Patents
16 patentsUS4640871AFeb 3, 1987
Magnetic material having high permeability in the high frequency range
SONY CORP68 citations95
US5400307AMar 21, 1995
Magneto-optical recording medium with stacked layer structure
SONY CORP20 citations92
US5331491AJul 19, 1994
High-density magnetic recording and reproducing head
SONY CORP23 citations92
US5057380AOct 15, 1991
Soft magnetic thin films of alloys of feconi or fecody and laminates comprising alternate layers of face centered cubic and body centered cubic crystal structure
SONY CORP35 citations92
US4796241AJan 3, 1989
Device for producing a high frequency modulation magnetic field used in magneto-optical recording
SONY CORP21 citations81
US4379004AApr 5, 1983
Method of manufacturing an amorphous magnetic alloy
SONY CORP22 citations81
US4190438AFeb 26, 1980
Amorphous magnetic alloy
SONY CORP18 citations81
US5322588AJun 21, 1994
Method for producing KTIOPO4 single crystal
SONY CORP8 citations73
US5182690AJan 26, 1993
Fe-n-based soft magnetic thin films and magnetic heads using such films
SONY CORP8 citations73
US4639278AJan 27, 1987
Method of manufacturing an amorphous magnetic alloy
SONY CORP15 citations73
US4475962AOct 9, 1984
Annealing method for amorphous magnetic alloy
SONY CORP12 citations73
US4473415ASep 25, 1984
Method of manufacturing an amorphous magnetic alloy
SONY CORP10 citations73
US4444602AApr 24, 1984
Method of manufacturing amorphous magnetic alloy ribbon and use for magnetostriction delay lines
SONY CORP15 citations73
US4311539AJan 19, 1982
Method of manufacturing a high permeability amorphous magnetic alloy
SONY CORP9 citations73
US4707417ANov 17, 1987
Magnetic composite film
SONY CORP6 citations62
US5266418ANov 30, 1993
Magnetic recording medium
SONY CORP1 citations51