Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186780 | Method of manufacturing transmission type screen | Kenichi Sakunaga | 1993-02-16 |
| 5121252 | Projection screen and method for producing the same | Kenichi Sakunaga, Shigetada Nakagawa, Shozo Saito | 1992-06-09 |
| 5058989 | Transmission type screen and method of manufacturing the same | Kenichi Sakunaga | 1991-10-22 |
| 4953948 | Rear projection screen | Akira Ito | 1990-09-04 |
| 4921329 | Rear projection screen | Akira Ito | 1990-05-01 |