Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335193 | Microporous film, particularly battery separator, and method of making | Yoshinao Doi, Shigeo Kaneko, Takeo Hanamura, Osamu Fujii, Katsumi Yoshitake +1 more | 1982-06-15 |