Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490696 | Crossed waveguide type polarization separator | Fumio Takeda, Osami Ishida | 1984-12-25 |
YI
Yoji Isoda
Overall (All Time): #4,046,438 of 4,157,543Top 100%
1
Patents All Time