Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853495 | Electronic blackboard and electronic blackboard system | Tomonori Ouchi, Otsuro Wakamatsu, Hiroshi KAWANISHI | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853495 | Electronic blackboard and electronic blackboard system | Tomonori Ouchi, Otsuro Wakamatsu, Hiroshi KAWANISHI | 1989-08-01 |