Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810692 | Method of controlling an upper portion of an optical fiber draw furnace | Katsuya Nagayama, Kazuya Kuwahara, Ichiro Tsuchiya | 2004-11-02 |
| 6735983 | Optical fiber drawing method and drawing furnace | Ichiro Tsuchiya, Katsuyuki Tsuneishi, Katsuya Nagayama, Kazuya Kuwahara | 2004-05-18 |
| 6728458 | Optical fiber and fiber grating device | Shinji Ishikawa, Akira Inoue | 2004-04-27 |