Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6738549 | Polarization maintaining optical fiber and production method for polarization maintaining optical fiber preform | Tadayuki Inaba, Shigeru Emori, Kuniharu Himeno | 2004-05-18 |
| 6687442 | Optical fiber for preserving plane of polarization | Kuniharu Himeno, Akira Wada | 2004-02-03 |