Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11237322 | Optical fiber manufacturing method using relative bulk densities | Shinichi Arai, Shigeto Matsumoto, Takeshi Yagi, Shinichi Aozasa, Kyozo Tsujikawa +1 more | 2022-02-01 |
| 8181487 | Optical fiber preform manufacturing method | Ryuichi Sugizaki, Naomi Kumano, Iwao Shimotakahara, Takeshi Yagi, Tomoya Shimizu +2 more | 2012-05-22 |
| 7878712 | Optical fiber, optical fiber ribbon, and optical interconnection system | Iwao Shimotakahara, Ryuichi Sugizaki | 2011-02-01 |
| 7787732 | Optical fiber and optical fiber ribbon, and optical interconnection system | Ryuichi Sugizaki, Iwao Shimotakahara, Takeshi Yagi | 2010-08-31 |
| 7689080 | Optical fiber ribbon | Ryuichi Sugizaki, Takeshi Yagi | 2010-03-30 |
| 7583878 | Optical fiber, optical fiber ribbon, and optical interconnection system | Ryuichi Sugizaki, Iwao Shimotakahara, Takeshi Yagi | 2009-09-01 |
| 7574088 | Optical fiber and optical fiber ribbon, and optical interconnection system | Ryuichi Sugizaki, Iwao Shimotakahara, Takeshi Yagi | 2009-08-11 |