Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5888526 | Antibacterial antifungal agent and fibrous material containing the same | Yasuo Tsubai, Mitsuo Yoshida | 1999-03-30 |
| 4448921 | Rock wool composite material | Osamu Yamamoto, Takashi Koike, Shunji Seino | 1984-05-15 |