Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994335 | Microporous film, battery separator employing the same, and method of producing them | Hidetomo Ashitaka, Toru Takahashi | 1991-02-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994335 | Microporous film, battery separator employing the same, and method of producing them | Hidetomo Ashitaka, Toru Takahashi | 1991-02-19 |