Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670445 | Cleaning agent of harmful gas and cleaning method | Kenji Otsuka, Toshiya Hatakeyama, Hideki Fukuda | 1997-09-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670445 | Cleaning agent of harmful gas and cleaning method | Kenji Otsuka, Toshiya Hatakeyama, Hideki Fukuda | 1997-09-23 |