Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814641 | Method of manufacturing discharge lamps and a discharge lamp with a halogen introduction carrier | — | 2004-11-09 |
| 6787996 | Lamp seal using functionally gradient material | Katsuya Saito, Toyohiko Kumada | 2004-09-07 |