Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664224 | Quaternary ammonium salt and process for the preparation thereof | Shigeyuki Shibata, Katsuyoshi Harada, Masayoshi Kume | 2003-12-16 |
| 6613828 | Antibacterial acrylonitrile fiber having photocatalytic activity | Hideo Naka | 2003-09-02 |