Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420072 | Polyelectrolytic gel | Kunio Maruyama, Koji Tanaka | 2002-07-16 |
| 6403265 | Battery separator, process for producing the same, and alkaline battery | Toshio Tanaka, Hiroki Yamaguchi, Naohiko Takimoto, Masahiro Yamashita | 2002-06-11 |