Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693236 | Water-repellent surface structure and its fabrication method | Tomohiro Okumura, Ichiro Nakayama, Chikako Goto | 1997-12-02 |
| 5639470 | Deodorizer | Sadami Ishibashi, Tadao Hamaya, Masao Iijima | 1997-06-17 |