Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172833 | Alkaline dry cell | Shoichiro Tateishi, Koji Koide, Shinichi Iwamoto, Minajuro Ushijima | 2007-02-06 |
| 7090944 | Alkaline dry cell | Shoichiro Tateishi, Koji Koide, Shinichi Iwamoto, Minajuro Ushijima | 2006-08-15 |