IH

Isao Hayakawa

DC Daiichi Seiyaku Co.: 12 patents #1 of 111Top 1%
DC Daiichi Pharmaceutical Co.: 11 patents #7 of 399Top 2%
DL Daiichi Sankyo Company, Limited: 3 patents #194 of 842Top 25%
Overall (All Time): #155,725 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
4293695 Furonaphthyridine compounds Yoshiaki Tanaka 1981-10-06