Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459252 | Aerobic biological treatment apparatus | Hideki Kobayashi | 2022-10-04 |
| 11034602 | Biological activated carbon treatment apparatus | Hideki Kobayashi | 2021-06-15 |
| 9212073 | Ballast water treatment agent and method of treating ballast water of ship using the same | Akihide Hirano, Kotaro Fukuzawa, Kazuki Hayashi | 2015-12-15 |