Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616494 | Method and apparatus for supplying pellets to arc tube for discharge lamp | Akihiro Nagata, Kunio Fukai, Takeshi Fukuyo | 2003-09-09 |
| 6557379 | Method of producing an arc tube | Masayuki Umehara, Hiroshi Goto | 2003-05-06 |
| 6547619 | ARC tube for discharge lamp unit and method of manufacturing same | Nobuo Ohkawai, Yoshitaka Ohshima, Shinichi Irisawa | 2003-04-15 |