Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7158728 | Optical repeating system and optical amplifying repeater control method | Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi +2 more | 2007-01-02 |
| 7130544 | Optical repeating system and optical amplifying repeater control method | Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Masatoshi Suzuki +2 more | 2006-10-31 |
| 7009693 | Gain profile measuring method and system and gain profile controlling method and system | Kiyoaki Takashina, Koji Goto | 2006-03-07 |
| 6914718 | Optical repeating system and optical amplifying repeater control method | Yasunori Kasahara, Hideki Goto, Takashi Mizuochi, Kenkichi Shimomura, Yukio Horiuchi +2 more | 2005-07-05 |
| 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 |
| 6654104 | Apparatus and method for measuring optical characteristics and recording medium | Eiji Kimura, Motoki Imamura | 2003-11-25 |
| 6594003 | Measuring system of transmission characteristics | Yukio Horiuchi | 2003-07-15 |
| 6433865 | Apparatus and method for measuring optical characteristics and recording medium | Eiji Kimura, Motoki Imamura, Satoru Nagumo | 2002-08-13 |
| 6377373 | Optical transmission system | Koji Goto | 2002-04-23 |
| 6327060 | Optical transmission system, optically branching apparatus and optical signal processing apparatus | Tomohiro Otani, Koji Goto | 2001-12-04 |
| 6157098 | Feed line connection circuit and optical transmission system | Junichi Kojima, Kenichi Asakawa, Koji Goto, Koh-ichi Tatekura, Etsuo Nazuka | 2000-12-05 |
| 6115156 | Demultiplexer device for wavelength-division multiplexed optical fiber communication | Tomohiro Otani, Koji Goto, Hiroharu Wakabayashi | 2000-09-05 |
| 5978122 | Noise suppression method for wavelength division multiplexing transmission system | Koji Goto, Tomohiro Otani, Haruo Abe, Masando Tanaka | 1999-11-02 |