Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6344239 | Method for producing a tobacco filter material | Tanemi Asai, Hiroyuki Matsumura, Tohru Shibata | 2002-02-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6344239 | Method for producing a tobacco filter material | Tanemi Asai, Hiroyuki Matsumura, Tohru Shibata | 2002-02-05 |