Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12249500 | Light-emitting gas recovery method and light-emitting gas recovery apparatus | Masashi Dan, Takuya Tsukamoto, Yasushi Mizushima, Kimiya Iwasaki | 2025-03-11 |
| 11211240 | Short-arc discharge lamp | Yasuro Kikuchi | 2021-12-28 |
| 11062896 | High-pressure discharge lamp | Masashi Dan, Tomoyoshi Arimoto, Taro ARIMOTO, Shinji Nikawa | 2021-07-13 |
| 10354856 | Discharge lamp | Yuichi Sasaki | 2019-07-16 |
| 6703769 | Short-arc type discharge lamp having ventillation apertures at the bottom of the bases | Takeo Matushima, Kazuhiro Inaoka, Kyosuke Fujina | 2004-03-09 |
| 6433479 | Short-arc discharge lamp | Youichirou Higashimoto | 2002-08-13 |