Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6928840 | Optical fiber producing method | Katsuya Nagayama, Yuichi Ohga, Kazuya Kuwahara | 2005-08-16 |
| 6907757 | Drawing method of optical fiber and drawing furnace | Kazuya Kuwahara, Katsuya Nagayama, Masashi Onishi | 2005-06-21 |