Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849153 | Water-dispersible sheet and cigarette using the same | Yoshiaki Ishino, Masato Shishikura, Susumu Minamisawa | 1998-12-15 |
| 5722433 | Water-dispersible sheet for cigarettes and cigarette using the same | Yoshiaki Ishino, Masato Shishikura, Susumu Minamisawa | 1998-03-03 |