Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873034 | Process for producing microporous ultra-high-molecular-weight polyolefin membrane | Koichi Kono, Rumi Iwasaki, Shuichi Sawada | 1989-10-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873034 | Process for producing microporous ultra-high-molecular-weight polyolefin membrane | Koichi Kono, Rumi Iwasaki, Shuichi Sawada | 1989-10-10 |