Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4654483 | Electronic conference system | Ryusaku Imai, Tomoyuki Chou, Nobumasa Ohya, Hitoshi Sato | 1987-03-31 |
FS
Fujio Sekiguchi
Overall (All Time): #3,971,328 of 4,157,543Top 100%
1
Patents All Time