Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837855 | Non-blocking optical space switch | Kazuo Hajikano, Toshio Shimoe, Jyoei Kamoi, Koso Murakami | 1989-06-06 |
IS
Ippei Sawaki
Overall (1989): #102,299 of 140,708Top 75%
1
Patents 1989