Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6544356 | Steel sheet for use as an electrode-supporting frame member of a color picture tube and manufacturing method thereof | Yukio Katagiri, Akito Kawamoto, Seiichi Hamanaka, Takahide Sanma | 2003-04-08 |