Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7706652 | Optical waveguide device, optical module and method of aligning optical axes thereof | Kazuhiro Shibatani | 2010-04-27 |
| 6597830 | Matrix optical switch and optical ADM | Jun Yokoyama | 2003-07-22 |
| 6404968 | Optical waveguide elements and a process for producing the same | Mitsuhiro Kitamura, Tatsuo Kawaguchi, Jungo Kondo, Minoru Imaeda | 2002-06-11 |
| 6334008 | Optical circuit and method of fabricating the same | — | 2001-12-25 |
| 5808785 | Optical fiber amplifier and optical transmission system using the same | — | 1998-09-15 |
| 5600481 | Optical fiber amplifier and optical transmission system using the same | — | 1997-02-04 |
| 5436760 | Optical fiber amplifier with gain equalizing circuit | — | 1995-07-25 |