Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831425 | Xenon discharge lamp lighting device | Takeo Matsushima, Yoichiro Higashimoto | 2004-12-14 |
| 6703769 | Short-arc type discharge lamp having ventillation apertures at the bottom of the bases | Takumi Yamane, Takeo Matushima, Kazuhiro Inaoka | 2004-03-09 |