Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7017586 | Cigarette | Takeo Tsutsumi | 2006-03-28 |
| 6904917 | Method of manufacturing cigarette suppressing spread of burn and apparatus for manufacturing cigarette suppressing spread of burn | Satoshi Kitao, Sadayoshi Matsuura, Fumio Sashide, Tsuyoshi Futamura | 2005-06-14 |
| 6860274 | Low fire-spreading cigarette | Takaaki Matsufuji, Takeo Tsutsumi | 2005-03-01 |
| 6848449 | Low fire-spreading smoking article and method of manufacturing the same | Satoshi Kitao, Takaaki Matsufuji, Takeo Tsutsumi, Fumio Sashide, Sadayoshi Matsuura | 2005-02-01 |
| 6568402 | Multi-ply cigarette filter wrapper | Kazuyo Kaneki, Takaichi Yoshida, Osamu Komatsubara, Hideaki Katsumata, Hiroshi Hara | 2003-05-27 |
| 6202650 | Filter-tipped cigarette and filter for a cigarette | Kazuyo Kaneki, Osamu Komatsubara | 2001-03-20 |