Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352047 | Side pincushion correcting circuit for color television receivers | Katsuo Isono | 1982-09-28 |
| 4268857 | Beam index color television receiver apparatus | Katsuo Isono | 1981-05-19 |
| 4261010 | Beam index color television receiver apparatus | Katsuo Isono | 1981-04-07 |