Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6256139 | Plastic optical fiber continuous optical amplifier and excitation tube | Kazuhito Fujii, Takayoshi Ishikawa | 2001-07-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6256139 | Plastic optical fiber continuous optical amplifier and excitation tube | Kazuhito Fujii, Takayoshi Ishikawa | 2001-07-03 |