Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6867908 | Optical amplifier having various control circuitry | Aritomo Uemura, Yukio Horiuchi, Masatoshi Suzuki, Noboru Edagawa, Shu Yamamoto +1 more | 2005-03-15 |
| 6801720 | Optical signal quality supervisory device | Takashi Mizuochi, Yojiro Osaki, Aritomo Uemura, Hiroshi Ichibangase, Tadayoshi Kitayama +4 more | 2004-10-05 |
| 6614588 | Optical amplifier having various control circuitry | Aritomo Uemura, Yukio Horiuchi, Masatoshi Suzuki, Noboru Edagawa, Shu Yamamoto +1 more | 2003-09-02 |
| 6445478 | Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods | Katsuhiro Shimizu, Takashi Mizuochi, Takeshi Komiya, Tadayoshi Kitayama, Masatoshi Suzuki +4 more | 2002-09-03 |
| 6236488 | Optical pulse position detecting circuit and an optical pulse generating apparatus and their methods | Katsuhiro Shimizu, Takashi Mizuochi, Takeshi Komiya, Tadayoshi Kitayama, Masatoshi Suzuki +4 more | 2001-05-22 |
| 6028695 | Optical modulating apparatus | Aritomo Uemura, Takashi Mizuochi, Katsuhiro Shimizu, Tadayoshi Kitayama, Masatoshi Suzuki +2 more | 2000-02-22 |
| 5455704 | Optical-fiber light amplifier | Takashi Mizuochi, Tadayoshi Kitayama, Katsuhiro Shimizu, Nobuyuki Takemura, Eiichi Nakagawa | 1995-10-03 |
| 5367587 | Optical amplifier | Takashi Mizuochi, Tadayoshi Kitayama, Katsuhiro Shimizu, Nobuyuki Takemura, Eiichi Nakagawa | 1994-11-22 |
| 5287389 | Frame alignment circuit | Hiroshi Ichibangase | 1994-02-15 |
| 5268786 | Optical fiber amplifier and its amplification method | Takashi Mizuochi, Mayumi Miyazaki, Tadayoshi Kitayama | 1993-12-07 |
| 4940306 | Star network optical transmission system | Tadayoshi Kitayama, Kuniaki Motoshima | 1990-07-10 |