Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692223 | Remotely-controlled flash photographing system | Tsutomu Ichikawa | 1997-11-25 |
| 5678077 | Electronic flash device and camera equipped with said device | Tsutomu Ichikawa | 1997-10-14 |