Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466721 | Dispersion compensating optical fiber and optical transmission line | Masao Tsukitani, Eisuke Sasaoka, Yuichi Ohga | 2002-10-15 |
| 6427044 | Optical fiber | Yuichi Ohga, Masashi Onishi | 2002-07-30 |