Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5938910 | Electrolytic manganese dioxide and method of manufacturing the same | Hisao Takehara, Yoshihiro Nakayama, Ryoichi Shimizugawa, Takumi Murai, Fumiya Takahashi +1 more | 1999-08-17 |
| 5746902 | Electrolytic manganese dioxide and method of manufacturing the same | Hisao Takehara, Yoshihiro Nakayama, Ryoichi Shimizugawa, Takumi Murai, Fumiya Takahashi +1 more | 1998-05-05 |