Issued Patents 2004
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6804469 | Supervisory system of optical amplifier repeater system and supervisory method of optical amplifier repeater system | Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi +2 more | 2004-10-12 |
| 6798558 | Optical clock multiplier and method thereof | Michiaki Hayashi, Tomohiro Otani | 2004-09-28 |
| 6786189 | Internal combustion engine | Takushi Matsuto, Ryo Kubota, Toshio Shimada, Naoto Hara | 2004-09-07 |
| 6775478 | Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM converter and TDM/WDM converter | Noboru Edagawa | 2004-08-10 |
| 6768872 | Optical transmission system, optical transmission line and optical transmitter | Takehiro Tsuritani, Keiji Tanaka, Noboru Edagawa | 2004-07-27 |
| 6763796 | Internal combustion engine | Naoto Hara | 2004-07-20 |
| 6754420 | Optical fiber transmission line | Takehiro Tsuritani, Keiji Tanaka, Noboru Edagawa | 2004-06-22 |
| 6748178 | Optical transmission line | Takayuki Miyakawa, Noboru Edagawa | 2004-06-08 |
| 6744990 | WDM optical transmission system and an optical transmission line thereof | Noriyuki Takeda, Noboru Edagawa, Hideaki Tanaka, Shinichi Nakagawa, Hidenori Taga +1 more | 2004-06-01 |
| 6744989 | Optical transmission system, its method, and optical amplification transmission line | Takehiro Tsuritani, Yuichi Yamada, Noboru Edagawa | 2004-06-01 |
| 6728437 | Pumping light generator and fiber Raman amplifier | Noboru Edagawa | 2004-04-27 |