Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821680 | Battery separator, process for producing the same, and alkaline battery | Toshio Tanaka, Hiroki Yamaguchi, Masahiro Yamashita, Shiro Hamamoto | 2004-11-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821680 | Battery separator, process for producing the same, and alkaline battery | Toshio Tanaka, Hiroki Yamaguchi, Masahiro Yamashita, Shiro Hamamoto | 2004-11-23 |