Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6562357 | Blackhead removing sheet and method for producing blackhead removing sheet | Hideaki Okabe | 2003-05-13 |
| 6190683 | Blackhead-removing face pack sheet | Eiji Suzuki, Hideaki Okabe | 2001-02-20 |
| 5173189 | Membrane for separating an organic solvent from a water-organic solvent mixture | Tsutomu Nakagawa, Akon Higuchi, Toshio Sugizaki | 1992-12-22 |