Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490078 | Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser | Tadashi Enomoto, Masahiro Takagi, Motoki Kakui, Shinji Ishikawa, Masakazu Shigehara +1 more | 2002-12-03 |
| 6466721 | Dispersion compensating optical fiber and optical transmission line | Masao Tsukitani, Eisuke Sasaoka, Eiji Yanada | 2002-10-15 |
| 6427044 | Optical fiber | Eiji Yanada, Masashi Onishi | 2002-07-30 |
| 6400878 | Optical fiber and method of making the same | Katsuya Nagayama, Tatsuhiko Saitoh, Shinji Ishikawa, Ichiro Tsuchiya, Takenori Uchiyama | 2002-06-04 |