Inventor
KATAYAMA KOICHI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “KATAYAMA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EISAI CO LTD
5 patentsUS5385942AJan 31, 1995
Quinone derivatives and pharmacological use
EISAI CO LTD48 citations95
US5210239AMay 11, 1993
Ouinone derivatives and pharmacological use
EISAI CO LTD49 citations95
US6703388B2Mar 9, 2004
Nitrogen-containing tricyclic compounds and drugs containing the same
EISAI CO LTD8 citations72
US6333322B1Dec 25, 2001
Nitrogen-containing tricyclic compounds and drugs containing the same
EISAI CO LTD6 citations72
US6489336B2Dec 3, 2002
Nitrogen-containing tricyclic compounds and drugs containing the same
EISAI CO LTD3 citations61