Issued Patents 2005
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6976625 | Electronic purse | Yutaka Takami, Kenji Matsumoto, Shigeyuki Itoh | 2005-12-20 |
| 6958856 | Raman amplifier, raman amplifier control method, and optical communication system | Motoki Kakui | 2005-10-25 |
| 6947207 | Raman amplifier, optical transmission system using such amplifier and pumping light source therefor | — | 2005-09-20 |
| 6938165 | Program writable IC card and method thereof | Shigeyuki Itoh, Yutaka Takami, Kenji Matsumoto | 2005-08-30 |
| 6934228 | Optical head | Takeshi Shimano, Shigeru Nakamura, Kunikazu Ohnishi, Yukio Fukui | 2005-08-23 |
| 6867907 | Pumping light source unit, raman amplifier, and optical transmission system | Motoki Kakui, Masakazu Shigehara | 2005-03-15 |