Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941206 | Loop-type optical fiber transmission system having master and slave apparatus | Tsutomu Sakurai, Yoshifumi Hara | 1990-07-10 |
YD
Yasumasa Dougakiuchi
Overall (All Time): #3,907,121 of 4,157,543Top 95%
1
Patents All Time