Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7236657 | Optical switch and optical add/drop multiplexer using the same | Hidekuni Asai, Yoshiatsu Yokoo | 2007-06-26 |
| 7164817 | Optical switch and optical add/drop multiplexer using the same | Hidekuni Asai, Yoshiatsu Yokoo | 2007-01-16 |
| 6876789 | Optical filtering module and optical devices using such optical filtering module | Toshihisa Kurosawa, Hidekuni Asai, Seiichi Yokoyama, Yoshiatsu Yokoo | 2005-04-05 |
| 6701041 | Optical filter module and optical apparatus using the same | Toshihisa Kurosawa, Hidekuni Asai, Seiichi Yokoyama, Yoshiatsu Yokoo | 2004-03-02 |
| 6510709 | Shaping mold optical fiber guide block processes for the production thereof and optical fiber array | Teruo Yamashita, You Ohgami | 2003-01-28 |