Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33936 | Electronic blackboard apparatus | Nobuyuki Miyamori, Yoshiaki Tomofuji, Kiyosato Izawa | 1992-05-26 |
| 4711977 | Electronic blackboard apparatus | Nobuyuki Miyamori, Yoshiaki Tomofuji, Kiyosato Izawa | 1987-12-08 |