Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580200 | Discharge lamp and manufacturing method thereof | Takeshi Fukuyo, Yoshitaka Ohshima | 2003-06-17 |
| 6547619 | ARC tube for discharge lamp unit and method of manufacturing same | Nobuo Ohkawai, Yoshitaka Ohshima, Masakazu Nagasawa | 2003-04-15 |