Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4195649 | Tobacco smoke filter | Kazuo Maeda, Yuriko Anzai, Minoru Hirai, Kazuo Izumi, Kenji Niijima | 1980-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4195649 | Tobacco smoke filter | Kazuo Maeda, Yuriko Anzai, Minoru Hirai, Kazuo Izumi, Kenji Niijima | 1980-04-01 |