Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866333 | Color picture tube with shadow mask supporting assembly | Kiyoshi Tokita, Toshinao Sone, Hiroshi Urata | 1989-09-12 |
| 4827180 | Color picture tube with support members for the mask frame | Toshinao Sone, Hiroshi Urata, Tooru Takahashi, Hidetoshi Yamazaki, Kiyoshi Tokita | 1989-05-02 |