Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620748 | Light-amplifying glass, light-amplifying medium and resin-coated light-amplifying medium | Naoki Sugimoto, Setsuro Ito, Setsuhisa Tanabe, Teiichi Hanada | 2003-09-16 |
| 6560392 | Optical amplifying glass fiber | Naoki Sugimoto, Setsuro Ito | 2003-05-06 |