Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731847 | Optical fiber | Takatoshi Kato, Kazuhiro Okamoto, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2004-05-04 |
| 6628872 | Dispersion compensator and optical transmission system | Kohei Kobayashi, Kenji Tamano, Keiichiro Fukuda, Masashi Onishi | 2003-09-30 |
| 6614976 | Optical fiber having a large positive dispersion | Takatoshi Kato, Kazuhiro Okamoto, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2003-09-02 |
| 6337942 | Optical fiber | Takatoshi Kato, Kazuhiro Okamoto, Shinjiro Hagihara, Morio Watanabe, Kohei Kobayashi | 2002-01-08 |