Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797107 | Copyable blackboard | Naoyuki Hatta, Hideo Yoshihara, Takeshi Izaki, Takemi Yamamoto, Kazuo Sangyoji | 1989-01-10 |
AS
Akihiro Sawada
Overall (All Time): #3,918,828 of 4,157,543Top 95%
1
Patents All Time