Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5905823 | Polarization independent optical nonreciprocal circuit based on even mode to odd mode conversion | Toshihiro Shintaku, Yujiro Katoh, Yoshiaki Tachikawa, Haruki Kozawaguchi | 1999-05-18 |