Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6593692 | High pressure discharge lamp with long life | Takashi Tsutatani, Toshiyuki Shimizu | 2003-07-15 |
| 6545430 | High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same | Shunsuke Ono, Haruo Nagai | 2003-04-08 |
| 6515406 | High-pressure mercury vapor discharge lamp and lamp unit | Makoto Kai, Mamoru Takeda | 2003-02-04 |