Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6563989 | Optical fiber coupler and optical fiber for optical fiber coupler | Shinji Ishikawa, Masayuki Kiya | 2003-05-13 |
| 6535679 | Optical fiber and method of manufacturing the same | Yoshio Yokoyama, Toshio Danzuka | 2003-03-18 |