Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463201 | Light amplification optical fiber and light amplifier using the same | Keiichi Aiso, Takeshi Yagi | 2002-10-08 |
| 6433928 | Optical amplifier, optical amplification apparatus, and optical amplification method | Katsuya Nukui, Shu Namiki | 2002-08-13 |
| 6411430 | Optical amplifier | Atsushi Ogino, Masaru Fukushima, Yoshihiro Emori, Haruki Ogoshi | 2002-06-25 |