Inventor

ISHIZAKA YUKIO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “ISHIZAKA YUKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON KAYAKU KK

2 patents

US4941923AJul 17, 1990

Water-insoluble black pigment

NIPPON KAYAKU KK9 citations70

US4682192AJul 21, 1987

Heat-sensitive recording sheet

NIPPON KAYAKU KK15 citations68

(unassigned)

1 patent

US6277220B1Aug 21, 2001

Steel wire rod and process for producing steel for steel wire rod

28 citations86

SUMITOMO METAL IND

1 patent

US6402858B1Jun 11, 2002

Super-clean steel

SUMITOMO METAL IND4 citations58