Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735983 | Optical fiber drawing method and drawing furnace | Toshiki Taru, Ichiro Tsuchiya, Katsuya Nagayama, Kazuya Kuwahara | 2004-05-18 |
| 6711335 | Heat resistant optical fiber core | Makoto Shimizu, Yuji Kubo, Tomoyuki Hattori | 2004-03-23 |