Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407504 | High pressure discharge lamp having composite electrode | — | 2002-06-18 |
| 6392345 | High pressure discharge lamp having stopper arranged between tubular member and electrode unit | Michio Asai | 2002-05-21 |
| 6362567 | High pressure discharge lamp having thermal layers manufacturing the same | — | 2002-03-26 |