Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500584 | Manganese dry batteries | Ryohei Ashihara, Tetsuya Kobayashi, Keiji Ogino | 2002-12-31 |
| 5866278 | Electrolytic manganese dioxide, process for preparing the same, and manganese dry cell | Hiroshi Sumida, Takuya Inoue, Kiyoteru Enomoto, Hajime Murakami, Yoshihiro Sakurai | 1999-02-02 |