Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947092 | Optical device | Katsuhiko Nagata, Yasuichi Ishii | 2005-09-20 |
| 5794090 | Zoom lens | Shigeru Oshima, Yoshiharu Nakamura, Yasuhiro Izumi | 1998-08-11 |
| 4794417 | Photographing apparatus | Takeshi Sekiguchi, Tsuneaki Kadosawa | 1988-12-27 |