Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656584 | Glass fiber | Naoki Sugimoto | 2003-12-02 |
| 6653251 | Optical amplifying glass and method for its production | Naoki Sugimoto | 2003-11-25 |
| 6620748 | Light-amplifying glass, light-amplifying medium and resin-coated light-amplifying medium | Naoki Sugimoto, Yutaka KUROIWA, Setsuhisa Tanabe, Teiichi Hanada | 2003-09-16 |
| 6599852 | Optical amplifying glass | Yuki Kondo, Naoki Sugimoto, Tatsuo Nagashima, Setsuhisa Tanabe | 2003-07-29 |
| 6599853 | Optical amplifier glass | Naoki Sugimoto, Setsuhisa Tanabe | 2003-07-29 |
| 6560392 | Optical amplifying glass fiber | Naoki Sugimoto, Yutaka KUROIWA | 2003-05-06 |