Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6649860 | Transfer type plasma heating anode | Takeshi Kawachi, Kazuto Yamamura, Hiroyuki Mitake, Katsuhiro Imanaga, Masahiro Doki +2 more | 2003-11-18 |
| 6587619 | Optical functional devices their manufacturing method and optical communication system | — | 2003-07-01 |
| 6535537 | Optical amplification and light emitting element | — | 2003-03-18 |