Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388368 | Color cathode ray tube having an improved internal magnetic shield | Noriharu Matsudate, Atsuo Nakagawa, Hidehiro Koumura | 2002-05-14 |
| 6229254 | Color cathode ray tube having an improved internal magnetic shield | Noriharu Matsudate, Atsuo Nakagawa, Hidehiro Koumura | 2001-05-08 |