Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6069196 | Molded articles for photographic photo-sensitive materials | Mutsuo Akao | 2000-05-30 |
| 6004733 | Packaged roll-shaped silver halide photosensitive material | Yukio Ishii, Mutsuo Akao, Masatoshi Kato | 1999-12-21 |
| 5981048 | Completely light-shielding packaging material for photosensitive material and package using same | Hideyuki Sugimoto, Mutsuo Akao | 1999-11-09 |
| 5804020 | Process for producing a laminated film that is formed by blocking | Mutsuo Akao, Makoto Kawamura, Koji Nakai | 1998-09-08 |
| 5660351 | Multi-shaft turret type winding device | — | 1997-08-26 |
| 5532028 | Easily openable package of photographic photosensitive materials and producing the same | Mutsuo Akao, Makoto Kawamura | 1996-07-02 |
| 5358785 | Laminated film and process for producing the same | Mutsuo Akao, Makoto Kawamura, Koji Nakai | 1994-10-25 |
| 5353933 | Package of rolled photosensitive material | Hisashi Takahashi, Shigehisa Shimizu, Satoshi Mino, Koji Kudo | 1994-10-11 |
| 5286614 | Substrate of and core for photosensitive material | Keiichi Ishizaki, Takashi Takeuchi, Mutsuo Akao, Shinichi Fujii | 1994-02-15 |
| 5163556 | Packed assembly of roll-form photographic light-sensitive materials | Mutsuo Akao, Tatsuo Sugii, Koji Inoue | 1992-11-17 |
| 4894264 | Gusset bag for photographic photosensitive materials | Mutsuo Akao, Koji Inoue | 1990-01-16 |
| 4876125 | Gusset bag for photographic photosensitive materials | Mutsuo Akao, Koji Inoue | 1989-10-24 |