Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880292 | Transmission viewing screen of image projector apparatus | Hitoshi Kageyama, Toshikazu Suzuki, Keijiro Sakamoto, Tetsuo Kyogoku | 1989-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880292 | Transmission viewing screen of image projector apparatus | Hitoshi Kageyama, Toshikazu Suzuki, Keijiro Sakamoto, Tetsuo Kyogoku | 1989-11-14 |