Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355135 | Method of laminating gas permeable sheet material | Osamu Inoue, Toshio Kusumi, Jun Asano, Katsutoshi Yamamoto, Osamu Tanaka +1 more | 2002-03-12 |
| 6336948 | Fire-retardant filter medium and air filter unit | Osamu Inoue, Shinichi Chaen, Toshio Kusumi, Jun Asano, Seiichi Hirano +1 more | 2002-01-08 |