Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7894697 | Optical fiber, optical transmission line, optical module, and optical transmission system | Takashi Sasaki, Tetsuya Haruna, Masashi Onishi, Masaaki Hirano | 2011-02-22 |
| 7317856 | Method of making optical fiber and optical fiber made by the method | Masaaki Hirano, Tetsuya Nakanishi | 2008-01-08 |
| 7286740 | Optical fiber, optical transmission line, optical module and optical transmission system | Takashi Sasaki, Tetsuya Haruna, Masashi Onishi, Masaaki Hirano | 2007-10-23 |