Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6404968 | Optical waveguide elements and a process for producing the same | Yukinobu Nakabayashi, Mitsuhiro Kitamura, Tatsuo Kawaguchi, Minoru Imaeda | 2002-06-11 |
| 6400494 | Traveling wave optical modulator | Atsuo Kondo, Kenji Aoki | 2002-06-04 |
| 6363189 | Directional coupler | Makoto Minakata, Tatsuo Kawaguchi, Minoru Imaeda | 2002-03-26 |