Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5821686 | Inner-shield material to be attached inside a color cathode ray tube | Osamu Yubuta | 1998-10-13 |
| 5618401 | Inner-shield material to be attached inside a color cathode ray tube and manufacturing method thereof | Osamu Yubuta | 1997-04-08 |