Inventor

UTSUNOMIYA KEI

4 patents

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

KOBE STEEL LTD

2 patents

US4131643ADec 26, 1978

Catalyst for converting nitrogen oxides and method for converting nitrogen oxides in exhaust gases by using said catalyst

KOBE STEEL LTD24 citations73

US4348226ASep 7, 1982

Direct reduction process for producing metallic iron

KOBE STEEL LTD7 citations68

HUKUBA KOGYO KK

2 patents

USD256878SSep 16, 1980

Floor sweeper

HUKUBA KOGYO KK12 citations71

USD256879SSep 16, 1980

Floor sweeper

HUKUBA KOGYO KK1 citations50