Inventor

YOKOYAMA SHIGEO

JP2 patents

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

ASAHI CHEMICAL IND

1 patent

US4093568AJun 6, 1978

Process for production of perfluorocarbon type cation exchange membrane

ASAHI CHEMICAL IND9 citations71

ASAHI KASEI KABASHIKI KAISHA

1 patent

US4400199AAug 23, 1983

Thiolcarbamate compounds and their use as herbicides

ASAHI KASEI KABASHIKI KAISHA5 citations54