Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679316 | Activated carbon, production thereof and adsorption using activated carbon | Yoshihiro Ikenaga | 1997-10-21 |
| 5630367 | Activated carbon and production thereof | Yoshihiro Ikenaga | 1997-05-20 |
| 5620506 | Activated carbon, production thereof and adsorption using activated carbon | Yoshihiro Ikenaga | 1997-04-15 |