Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10457582 | System and method for wastewater treatment through controlling purification functions of microorganisms based on activated sludge process | Akiyoshi Ohki | 2019-10-29 |
| 10435319 | System and method for wastewater treatment using selective gas-dispersion return sludge delivery | Akiyoshi Ohki, Kousuke Chiba | 2019-10-08 |
| 10287194 | System and method for gas-based water disinfection | Akiyoshi Ohki | 2019-05-14 |
| 10167214 | System and method for gas-dispersion-return-sludge-based wastewater treatment | Akiyoshi Ohki, Kousuke Chiba | 2019-01-01 |