Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673244 | Magnetic sludge suitable for use in wastewater treatment, method for preparing the same and method for wastewater treatment | Takaaki Maekawa | 2004-01-06 |
| 6290851 | Microorganisms-immobilized magnetic carriers, a process for producing the carriers and a method of treating wastewater | Takaaki Maekawa | 2001-09-18 |
| 6043068 | Microorganisms-immobilized magnetic carriers, a process for producing carriers | Takaaki Maekawa | 2000-03-28 |