Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462477 | High pressure discharge lamp | Masato Wada, Akio Takubo | 2002-10-08 |
| 6107742 | Metal halide lamp | Tomoyuki Seki, Kenji Akiyoshi | 2000-08-22 |
| 6084352 | High pressure discharge lamp with seal coating | Tomoyuki Seki, Kazuo Maeda, Hiroshi Sugimoto | 2000-07-04 |
| 6023129 | Metal halide lamp | Tomoyuki Seki | 2000-02-08 |