Inventor

KOIWAI YOSHIHISA

JP2 patents

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

NIPPON OIL CO LTD

1 patent

US4101635AJul 18, 1978

Method for regenerating and recycling catalyst for oxidation of sulfur dioxide

NIPPON OIL CO LTD18 citations70

SUMITOMO METAL IND

1 patent

US4437883AMar 20, 1984

Process for producing metal powder

SUMITOMO METAL IND10 citations69