Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8097231 | Method and system for producing activated carbon | Masayoshi Nagata, Noboru Ishibashi, Kazuyoshi Yamamoto, Yoshio Hara | 2012-01-17 |
| 8038976 | Method and system for producing activated carbon | Masayoshi Nagata | 2011-10-18 |