Inventor

KIKUCHI KATSUHEI

JP4 patents

Patents

4 patents

US4997529AMar 5, 1991

Electrolytic process and apparatus for forming pattern on surface of metallic object

KAWASAKI STEEL CO23 citations89

US5395510AMar 7, 1995

Efficient preparation of blackened steel strip

KAWASAKI STEEL CO7 citations71

US5389436AFeb 14, 1995

Surface-treated metal sheet which excels in workability, electrical conductivity and corrosion resistance, and method of producing the same

KAWASAKI STEEL CO3 citations60

US4935111AJun 19, 1990

Method for producing black colored steel strip

KAWASAKI STEEL CO5 citations60