Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4267250 | Color diffusion transfer photographic element | Seiki Sakanoue, Kokichi Waki, Motohiko Tsubota, Osamu Takahashi | 1981-05-12 |
AN
Asao Nakatsuka
Overall (All Time): #4,089,412 of 4,157,543Top 100%
1
Patents All Time