Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8617397 | Reverse osmosis filtration devices with RFID tag-powered flow and conductivity meters | Mark Wilf | 2013-12-31 |
| 8568596 | Membrane filtering device managing system and membrane filtering device for use therein, and membrane filtering device managing method | Takahisa Konishi, Kouji Maruyama, Yukio Fujiwara, Akira Ootani, Toshiki Kouno | 2013-10-29 |
| 8519559 | Spiral type membrane element, and spiral type membrane filtering device having the same | Takahisa Konishi, Kouji Maruyama, Toshiki Kouno, Keisuke Hirano, Akira Ootani +1 more | 2013-08-27 |
| 7736495 | Filtration devices with embedded radio frequency identification (RFID) tags | Mark Wilf | 2010-06-15 |
| 7584061 | Device for measuring permeate flow and permeate conductivity of individual reverse osmosis membrane elements | Mark Wilf, Rich Franks, Craig R. Bartels | 2009-09-01 |
| 7481917 | Filtration devices with embedded radio frequency identification (RFID) tags | Mark Wilf | 2009-01-27 |
| 4747946 | Tubular membrane ultrafiltration module | Noriaki Yoshioka, Shusaku Tamaru, Hisashi Ichinose | 1988-05-31 |
| 4707261 | Tubular membrane ultrafiltration module | Noriaki Yoshioka, Shusaku Tamaru, Hisashi Ichinose | 1987-11-17 |
| 4427200 | Seal structure of end part of liquid separation tube | Nobuo Sotoma, Shusaku Tamaru | 1984-01-24 |