Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783282 | Optical wavelength filter | Hideyuki Miyata, Masaharu Doi | 2004-08-31 |
| 6768570 | Optical modulator | Masaki Sugiyama | 2004-07-27 |
| 6741378 | Optical modulator having element for varying optical phase by electrooptic effect | Masaki Sugiyama, Masaharu Doi | 2004-05-25 |
| 6728487 | Drive method for a plurality of acousto-optic filters, acousto-optic filter apparatus, and selective wavelength extension method | — | 2004-04-27 |
| 6721085 | Optical modulator and design method therefor | Masaki Sugiyama | 2004-04-13 |
| 6701031 | Acousto-optical tunable filter, method of driving the same, and optical add/drop multiplexer | — | 2004-03-02 |
| 6697543 | Optical waveguide filter | Hiroshi Miyata | 2004-02-24 |
| 6678428 | Optical modulator | Minoru Seino, Tetsuo Ishizaka, Takehito Tanaka, Masaharu Doi | 2004-01-13 |