Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694244 | Real-image finder having variable power | Tetsuya Abe, Takayuki Ito, Sachio Hasushita | 1997-12-02 |
| 5668674 | Reflecting prism and a finder system having a reflecting prism | Sachio Hasushita | 1997-09-16 |