RI

Ryoji Ishioka

SD Showa Denko: 2 patents #110 of 593Top 20%
SC Showa Highpolymer Co.: 1 patents #45 of 102Top 45%
Overall (All Time): #1,603,536 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6716911 Method for producing aqueous biodegradable polyester dispersion Yukio Doi, Yoshiro Okino, Mitsuhiro Imaizumi 2004-04-06
4634784 Process for production of epichlorohydrin Nobuyuki Nagato, Hideki Mori, Kenichiro Maki 1987-01-06
4567292 Process for production of allyl carboxylate Nobuyuki Nagato, Kenichiro Maki, Tomoe Uematsu 1986-01-28