Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750612 | Mercury-free arc tube for discharge lamp unit | Michio Takagaki, Masaya Shido, Shinichi Irisawa | 2004-06-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6750612 | Mercury-free arc tube for discharge lamp unit | Michio Takagaki, Masaya Shido, Shinichi Irisawa | 2004-06-15 |