Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814670 | Cathode ray tube apparatus having focusing grids with horizontally and vertically oblong through holes | Hiroshi Suzuki, Masao Natsuhara | 1989-03-21 |
| 4542320 | Cathode ray tube | Hiroshi Suzuki, Masao Natsuhara | 1985-09-17 |