Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10800681 | Wastewater treatment method and wastewater treatment system | Eiju Nakada, Yasuzo Sakai | 2020-10-13 |
| 10618827 | Scrubber wastewater treatment method and scrubber wastewater treatment device | Nami Ishikawa, Yasuzo Sakai | 2020-04-14 |