Inventor
NAGATA KATSUYUKI
JP7 patents
Patents
7 patentsUS4225398ASep 30, 1980
Method of improving the corrosion resistance of an anodically oxidized surface film on aluminum articles
YOSHIDA KOGYO KK41 citations91
US4210499AJul 1, 1980
Method of forming colored patterns on aluminum or its alloys
YOSHIDA KOGYO KK12 citations71
US4210695AJul 1, 1980
Method of forming colored patterns on aluminum or its alloys
YOSHIDA KOGYO KK13 citations71
US4070255AJan 24, 1978
Process for electrolytically coloring aluminum and aluminum alloys
YOSHIDA KOGYO KK14 citations71
US4042471AAug 16, 1977
Process for electrolytically coloring aluminum and aluminum alloys
YOSHIDA KOGYO KK4 citations60
US5249729AOct 5, 1993
Method for forming hook engaging part in thermal part of material for vertical suspension type surface treatment
YOSHIDA KOGYO KK4 citations53
US5467630ANov 21, 1995
Method for working terminal part of material for vertical suspension type surface treatment
YOSHIDA KOGYO KK1 citations44