Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683161 | Projecting optical device | Takatoshi Ishikawa, Katsuhiro Takamoto | 1997-11-04 |
| 5633759 | Zoom lens system | Hideki Nagata, Hiroyuki Matsumoto, Masakuni Tai | 1997-05-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683161 | Projecting optical device | Takatoshi Ishikawa, Katsuhiro Takamoto | 1997-11-04 |
| 5633759 | Zoom lens system | Hideki Nagata, Hiroyuki Matsumoto, Masakuni Tai | 1997-05-27 |