Inventor

SUMIDA YUTAKA

3 patents

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

KUREHA CHEMICAL IND CO LTD

2 patents

US4085034AApr 18, 1978

Method for the thermal cracking of heavy hydrocarbon

KUREHA CHEMICAL IND CO LTD16 citations70

US4147753AApr 3, 1979

Apparatus for the thermal cracking of heavy hydrocarbon

KUREHA CHEMICAL IND CO LTD6 citations59

CHIYODA CHEM ENG CONSTRUCT CO

1 patent

US4214979AJul 29, 1980

Method of thermally cracking heavy petroleum oil

CHIYODA CHEM ENG CONSTRUCT CO17 citations70