Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819847 | Optical fiber and optical transmission path | Shoichiro Matsuo, Koichi Harada | 2004-11-16 |
| 6738549 | Polarization maintaining optical fiber and production method for polarization maintaining optical fiber preform | Tadayuki Inaba, Shigeru Emori, Naoki Shamoto | 2004-05-18 |
| 6687442 | Optical fiber for preserving plane of polarization | Naoki Shamoto, Akira Wada | 2004-02-03 |