FO

Fumio Ohi

SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
📍 Toyonaka, JP: #733 of 1,166 inventorsTop 65%
Overall (All Time): #4,107,503 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4191708 Process for preparing and purifying p-phenylenediamine Hiromichi Okabe, Kiyomi Kishimoto 1980-03-04