Inventor
NIIYAMA KENJI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “NIIYAMA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BANYU PHARMA CO LTD
9 patentsUS5114918AMay 19, 1992
Endothelin antagonistic cyclic pentapeptides
BANYU PHARMA CO LTD78 citations95
US5496928AMar 5, 1996
Endothelin antagonistic substance
BANYU PHARMA CO LTD21 citations92
US5470833ANov 28, 1995
Endothelin antagonistic peptide derivatives
BANYU PHARMA CO LTD23 citations92
US7834019B2Nov 16, 2010
Substituted pyrazolo[3,4-d]pyrimidinone derivatives
BANYU PHARMA CO LTD20 citations91
US4839353AJun 13, 1989
Anti-ulcer substituted pyridine derivatives
BANYU PHARMA CO LTD28 citations89
US5444152AAug 22, 1995
Endothelin antagonistic peptide derivatives
BANYU PHARMA CO LTD16 citations81
US5614498AMar 25, 1997
Endothelin antagonistic substance
BANYU PHARMA CO LTD16 citations71
US5691315ANov 25, 1997
Endothelin antagonistic peptide derivatives
BANYU PHARMA CO LTD2 citations62
US4743609AMay 10, 1988
Indole derivatives having gastric and antisecretory and cytoprotective properties, and pharmaceutical preparations containing same
BANYU PHARMA CO LTD4 citations62