Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668659 | Optical fibers for optical amplifiers | Tadashi Sakamoto, Terutoshi Kanamori, Makoto Yamada, Makoto Shimizu, Shoichi Sudo | 1997-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668659 | Optical fibers for optical amplifiers | Tadashi Sakamoto, Terutoshi Kanamori, Makoto Yamada, Makoto Shimizu, Shoichi Sudo | 1997-09-16 |