Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761836 | Phosphor and flourescent display device | Takuya Hamada, Kazunori Kitagawa | 2004-07-13 |
| 6690119 | Phosphor, method for preparing phosphor layer and vacuum fluorescent display | Takuya Hamada, Kazunori Kitagawa | 2004-02-10 |
| 6673269 | Phosphor material and its method of manufacture | Tomokazu Suzuki, Takuya Hamada, Kazunori Kitagawa | 2004-01-06 |