Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668076 | Photocatalyst and method for preparing the same | Yasuhide Yamagushi, Masatoshi Yamazaki, Kazuhito Hashimoto | 1997-09-16 |
| 5643436 | Architectural material using metal oxide exhibiting photocatalytic activity | Takatoshi Ogawa, Yasuhiko Yoshioka, Nobuo Tsubouchi, Toshio Saito, Tamotsu Hasegawa +1 more | 1997-07-01 |
| 5595813 | Architectural material using metal oxide exhibiting photocatalytic activity | Takatoshi Ogawa, Yasuhiko Yoshioka, Nobuo Tsubouchi, Toshio Saito, Tamotsu Hasegawa +1 more | 1997-01-21 |