Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674398 | Composite reverse osmosis membrane | Masahiko Hirose, Kenichi Ikeda | 1997-10-07 |
| 5662730 | Method for pyrometallurgical smelting of copper | Susumu Akagi, Takayoshi Fujii, Yoshiaki Suzuki | 1997-09-02 |
| 5614099 | Highly permeable composite reverse osmosis membrane, method of producing the same, and method of using the same | Masahiko Hirose, Hiroki Ito, Kazuo Tanaka | 1997-03-25 |