Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6533937 | Methods of running and washing spiral wound membrane modules | Tetsurou Adachi, Masaaki Andou, Tomomi Ohara, Toshiyuki Kawashima, Ichirou Kawada | 2003-03-18 |
| 6432310 | Methods of running and washing spiral wound membrane module | Masaaki Andou, Tomomi Ohara, Ichirou Kawada | 2002-08-13 |
| 6402956 | Treatment system and treatment method employing spiral wound type membrane module | Masaaki Andou, Ichirou Kawada | 2002-06-11 |
| 6190557 | Spiral wound type membrane element, running method and washing method thereof | Yuji Nishida | 2001-02-20 |