Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8342695 | High pressure discharge lamp lighting apparatus and projector | Tetsuji Hirao, Atsushi Imamura, Koji Yamada, Hirohisa Iwabayashi | 2013-01-01 |
| 7531965 | Discharge centering lamp lighting device | Masashi Okamoto, Izumi Takaya | 2009-05-12 |