Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6984929 | Color picture tube apparatus with pincushion distortion correction | Etsuji Tagami | 2006-01-10 |
| 6304044 | Color display tube device | Etsuiji Tagami, Katsuyo Iwasaki | 2001-10-16 |