Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7938126 | Low ignition propensity cigarette | Takeo Tsutsumi | 2011-05-10 |
| 6860274 | Low fire-spreading cigarette | Takeo Tsutsumi, Keigo Miura | 2005-03-01 |
| 6848449 | Low fire-spreading smoking article and method of manufacturing the same | Satoshi Kitao, Keigo Miura, Takeo Tsutsumi, Fumio Sashide, Sadayoshi Matsuura | 2005-02-01 |