KO

Katsunori Oba

DC Dainippon Ink And Chemicals: 2 patents #241 of 1,002Top 25%
📍 Tochigi, JP: #1,324 of 2,789 inventorsTop 50%
Overall (All Time): #2,251,490 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6008346 Phthalocyanine compound and electrophotographic photoreceptor comprising same Yoshitaka Saito, Shinichi Okada 1999-12-28
5932382 Phthalocyanine compound and electrophotographic photoreceptor comprising same Yoshitaka Saito, Shinichi Okada 1999-08-03