Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791267 | Method of forming identifying indicium on cathode ray tubes | Keishi Yokoyama, Tetsuya Ohtsuka, Yuji Okazaki | 1988-12-13 |
| 4367430 | Shadow mask type color cathode-ray tube | Koji Nakamura | 1983-01-04 |