IO

Issei Otsuka

EI Eisai: 2 patents #451 of 998Top 50%
📍 Sakuragawa, JP: #28 of 58 inventorsTop 50%
Overall (All Time): #2,334,127 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4883916 Polyprenyl Compounds Kouji Nakamoto, Takeshi Suzuki, Shinya Abe, Kenji Hayashi, Akiharu Kajiwara +2 more 1989-11-28
4788330 Polyprenyl compounds Kouji Nakamoto, Takeshi Suzuki, Shinya Abe, Kenji Hayashi, Akiharu Kajiwara +2 more 1988-11-29