Issued Patents 2004
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825981 | Optical signal processor | Michiko Takushima, Tomomi Sano, Makoto Katayama | 2004-11-30 |
| 6823106 | Optical multiplexer/demultiplexer and adjustment method thereof | Michiko Takushima, Hiroshi Suganuma, Tomomi Sano | 2004-11-23 |
| 6819482 | Optical amplifier and optical communication system including the same | Motoki Kakui | 2004-11-16 |
| 6804437 | Diffraction grating device manufacturing method, diffraction grating device manufacturing apparatus, and diffraction grating device | Kiyotaka Murashima, Ken Hashimoto, Toshikazu Shibata, Akira Inoue, Masaki Ohmura | 2004-10-12 |
| 6788874 | Optical component | Shinji Ishikawa | 2004-09-07 |
| 6785444 | Optical fiber grating device | Shinji Ishikawa, Michiko Takushima, Tadashi Enomoto | 2004-08-31 |
| 6771358 | Branch line monitoring system and branch line monitoring method | Hiroo Kanamori | 2004-08-03 |
| 6766080 | Optical waveguide type defraction grating device and a method of manufacturing thereof | Masaki Ohmura | 2004-07-20 |
| 6738183 | Optical filter functioning as both a gain equalizer and noise-light blocking filter | — | 2004-05-18 |