Inventor
TAKAO SEIJI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “TAKAO SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAPAN EXLAN CO LTD
5 patentsUS4535027AAug 13, 1985
High strength polyacrylonitrile fiber and method of producing the same
JAPAN EXLAN CO LTD76 citations95
US4658004AApr 14, 1987
Polyacrylonitrile fiber with high strength and high modulus of elasticity
JAPAN EXLAN CO LTD10 citations73
US4283359AAug 11, 1981
Process for producing polyacrylonitrile reverse osmotic membranes
JAPAN EXLAN CO LTD9 citations70
US4659529AApr 21, 1987
Method for the production of high strength polyacrylonitrile fiber
JAPAN EXLAN CO LTD4 citations62
US4409162AOct 11, 1983
Process for producing acrylonitrile separation membranes in fibrous form
JAPAN EXLAN CO LTD4 citations60