Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639277 | Method for evaluating color picture tubes and device for the same and method for making color picture tubes | Hisae Shibuya, Tatsuo Horiuchi, Yoshio Yoshiwara | 2009-12-29 |