Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443023 | Alkaline cleaning liquid comprising urea and/or biuret, and cleaning method for reverse osmosis membrane | Kazuki ISHII | 2019-10-15 |
| 10307713 | Agent and method for cleaning permeable membranes | Tetsuya Aoki, Kunihiro Hayakawa | 2019-06-04 |
| 10252219 | Method for operating reverse osmosis membrane device, and reverse osmosis membrane device | Kunihiro Hayakawa | 2019-04-09 |
| 10239019 | Reverse-osmosis-membrane device and method for operating the same | Kunihiro Hayakawa | 2019-03-26 |