Inventor
MIYAWAKI TOSHI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “MIYAWAKI TOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIHON PARKERIZING
5 patentsUS4904544AFeb 27, 1990
Zn-based composite-plated metallic material and plating method
NIHON PARKERIZING8 citations73
US5000799AMar 19, 1991
Zinc-nickel phosphate conversion coating composition and process
NIHON PARKERIZING15 citations71
US5254238AOct 19, 1993
Surface treating solution and surface treating process for zinc-plated steel plates
NIHON PARKERIZING3 citations62
US4985087AJan 15, 1991
Treating zinciferous metal surfaces to blacken them
NIHON PARKERIZING1 citations51
US4728401AMar 1, 1988
Electrolytic post-treatment of phosphated surface
NIHON PARKERIZING1 citations50
HENKEL CORP
2 patentsUS5091223AFeb 25, 1992
Process for forming a blackened layer on a zinciferous surface by contacting the surface with an aqueous solution containing nickel and cobalt ions
HENKEL CORP9 citations73
US5318640AJun 7, 1994
Surface treatment method and composition for zinc coated steel sheet
HENKEL CORP17 citations68