Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11169059 | Chemical substance concentrator and chemical substance detection device | Atsuo Nakao | 2021-11-09 |
| 10960404 | Drainage processing apparatus and drainage processing method | Yasuzo Sakai | 2021-03-30 |