YI

Yoshio Ito

SL Sumitomo Pharmaceuticals Company Limited: 2 patents #67 of 327Top 25%
Overall (All Time): #2,303,435 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5231179 Heterocyclic compounds and their production Shiro Terashima, Takeo Kawabata, Kunikazu Sakai, Tamejiro Hiyama, Yoshikazu Kimura +3 more 1993-07-27
4892961 Amino acid derivatives, and their production Shiro Terashima, Yoshikazu Kimura, Kunikazu Sakai, Tamejiro Hiyama 1990-01-09