Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876289 | Hydrophilized porous membrane and production process thereof | Hajime Itoh | 1989-10-24 |
KM
Kazutami Mitani
Overall (1989): #90,276 of 140,708Top 65%
1
Patents 1989