Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5206925 | Rare earth element-doped optical waveguide and process for producing the same | Masataka Nakazawa, Yasuo Kimura, Katsuyuki Imoto, Seiichi Kashimura, Toshikazu Kamoshida | 1993-04-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5206925 | Rare earth element-doped optical waveguide and process for producing the same | Masataka Nakazawa, Yasuo Kimura, Katsuyuki Imoto, Seiichi Kashimura, Toshikazu Kamoshida | 1993-04-27 |