Inventor
HASEGAWA RYOICHI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “HASEGAWA RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON KAYAKU KK
7 patentsUS5202449AApr 13, 1993
Process for purifying 7-dimethylamino-6-demethyl-6-deoxytetracycline
NIPPON KAYAKU KK22 citations89
US4918208AApr 17, 1990
Process for producing 7-dimethylamino-6-demethyl-6-deoxytetracycline
NIPPON KAYAKU KK9 citations73
US6962726B2Nov 8, 2005
Method for preparing substrate for flexible print wiring board, and substrate for flexible print wiring board
NIPPON KAYAKU KK9 citations72
US4212813AJul 15, 1980
Process for producing substituted or unsubstituted naphthalic acids and acid anhydrides thereof
NIPPON KAYAKU KK3 citations61
US6124420ASep 26, 2000
Epoxy resin, epoxy resin composition and hardened product thereof
NIPPON KAYAKU KK5 citations60
US4582928AApr 15, 1986
Process for producing optically active phenylalanine
NIPPON KAYAKU KK6 citations60
US5840824ANov 24, 1998
Epoxy resin, epoxy resin composition and hardened product thereof
NIPPON KAYAKU KK2 citations59