Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5510671 | Inwardly convex vacuum envelope | Koji Nakamura, Keitaro Tsukui | 1996-04-23 |
| 5447460 | Cathode-ray tube display unit and method of making the same | Koji Nakamura, Tetsushin Yazu, Suguru Fujii, Keitaro Tsukui, Junko Itoh | 1995-09-05 |
| 5304890 | Cathode ray tube device having reinforcing frame | Keitaro Tsukui, Junko Itoh, Kouji Nakamura, Tesshin Yazu | 1994-04-19 |