Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6878277 | Photocatalytic filter, photocatalytic filter device and method for manufacturing photocatalytic filter | Yoshikazu Nishii, Kazuya Uchida | 2005-04-12 |
| 6468428 | Glass material for carrying a photocatalyst, filter device using the same and light irradiating method | Yoshikazu Nishii, Nobuhiro Maeda, Shin-ichi Ogawa, Yoichi Hachitani, Itaru Watanabe | 2002-10-22 |