Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6815881 | Color CRT electron gun with progressively reduced electron beam passing aperture size | Hsiang-Lin Chang | 2004-11-09 |
| 6677592 | Deflection lens device for electron beam lithography | — | 2004-01-13 |
| 6674228 | Multi-layer common lens arrangement for main focus lens of multi-beam electron gun | Yu-Kun Ma, Hsiang-Lin Chang, Chun-Hsien Yeh | 2004-01-06 |