Inventor

KOIZUMI KIYOHIKO

2 patents

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

KOBE STEEL LTD

1 patent

US4334920AJun 15, 1982

Integrated process for thermal cracking of heavy oil and reduction of iron ores

KOBE STEEL LTD25 citations79

KOA OIL CO LTD

1 patent

US4080283AMar 21, 1978

Process for continuous production of pitch

KOA OIL CO LTD14 citations66