Inventor
SAGAWA SEIJI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “SAGAWA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
7 patentsUS3947429AMar 30, 1976
Method for inhibiting premature vulcanization of diene rubbers
SUMITOMO CHEMICAL CO7 citations67
US5556980ASep 17, 1996
Piperidine compound, a process for producing the same and a stabilizer using the same
SUMITOMO CHEMICAL CO5 citations61
US3978021AAug 31, 1976
Inhibiting ozone deterioration of rubbers
SUMITOMO CHEMICAL CO6 citations60
US3956234AMay 11, 1976
Inhibiting ozone deterioration of rubbers
SUMITOMO CHEMICAL CO2 citations60
US4052363AOct 4, 1977
Method of protection from ozone deterioration for rubber
SUMITOMO CHEMICAL CO3 citations59
US3975417AAug 17, 1976
Process for producing halogenated organotin compounds
SUMITOMO CHEMICAL CO5 citations59
US4147696AApr 3, 1979
1-(2-Benzothiazolylthio)-piperidines
SUMITOMO CHEMICAL CO1 citations42