Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387348 | Method of mixed-bed filtration and demineralization with ion-exchange resins | Masahiro Hagiwara, Hideo Kawazu | 1995-02-07 |
| 5308876 | Materials for removing suspended impurities and use thereof | Hideo Kawazu, Masahiro Hagiwara | 1994-05-03 |