Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638489 | Cleaning process and cleaning agent for harmful gas | Kenji Otsuka, Yukichi Takamatsu, Youji Nawa | 2003-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638489 | Cleaning process and cleaning agent for harmful gas | Kenji Otsuka, Yukichi Takamatsu, Youji Nawa | 2003-10-28 |