Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6376057 | Packaging material for photographic photosensitive material | Mutsuo Akao, Masaaki Fujiyama | 2002-04-23 |
| 5981048 | Completely light-shielding packaging material for photosensitive material and package using same | Mutsuo Akao, Hiroyuki Osanai | 1999-11-09 |