Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823094 | Interferometer and its fabrication method | Takashi Goh, Makoto Abe, Yasuyuki Inoue, Masayuki Okuno | 2004-11-23 |
| 6775454 | Silica-based optical waveguide circuit and fabrication method thereof | Mikitaka Itoh, Yasuhiro Hida, Yasuyuki Inoue | 2004-08-10 |
| 6724957 | Optical filter | Takayuki Mizuno, Akira Himeno, Katsunari Okamoto, Koichi Takiguchi, Manabu Oguma | 2004-04-20 |