Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5619601 | Optical switch and optical distributor using polarization control and partial reflection | Tsuyoshi Yamamoto, Takakiyo Nakagami | 1997-04-08 |
TA
Tamotsu Akashi
Overall (1997): #72,936 of 185,788Top 40%
1
Patents 1997