Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7236657 | Optical switch and optical add/drop multiplexer using the same | Kaoru Kagami, Yoshiatsu Yokoo | 2007-06-26 |
| 7164817 | Optical switch and optical add/drop multiplexer using the same | Kaoru Kagami, Yoshiatsu Yokoo | 2007-01-16 |
| 6876789 | Optical filtering module and optical devices using such optical filtering module | Kaoru Kagami, Toshihisa Kurosawa, Seiichi Yokoyama, Yoshiatsu Yokoo | 2005-04-05 |
| 6701041 | Optical filter module and optical apparatus using the same | Kaoru Kagami, Toshihisa Kurosawa, Seiichi Yokoyama, Yoshiatsu Yokoo | 2004-03-02 |