Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798992 | Color cathode-ray tube with electron beam selection mask support structure | Hiroshi Ichigaya, Susumu Tagawa, Yasuoshi Sugii, Masanori Ando, Jun Yamazaki +4 more | 1989-01-17 |