Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6568402 | Multi-ply cigarette filter wrapper | Takaichi Yoshida, Keigo Miura, Osamu Komatsubara, Hideaki Katsumata, Hiroshi Hara | 2003-05-27 |
| 6206007 | Cigarette with a dual-structure filter | Takaichi Yoshida, Hayato Hasebe, Shinichiro Tanaka | 2001-03-27 |
| 6202650 | Filter-tipped cigarette and filter for a cigarette | Keigo Miura, Osamu Komatsubara | 2001-03-20 |