Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643436 | Architectural material using metal oxide exhibiting photocatalytic activity | Takatoshi Ogawa, Yasuhiko Yoshioka, Toshio Saito, Tamotsu Hasegawa, Akira Fujishima +1 more | 1997-07-01 |
| 5595813 | Architectural material using metal oxide exhibiting photocatalytic activity | Takatoshi Ogawa, Yasuhiko Yoshioka, Toshio Saito, Tamotsu Hasegawa, Akira Fujishima +1 more | 1997-01-21 |