Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4246009 | Smoke filter material and use thereof | Hideo Sawada, Motoharu Kotani, Koji Sato, Toichiro Izawa, Akisato Katanosaka | 1981-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4246009 | Smoke filter material and use thereof | Hideo Sawada, Motoharu Kotani, Koji Sato, Toichiro Izawa, Akisato Katanosaka | 1981-01-20 |