Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7659031 | Size AA alkaline battery | Kenta Yamamoto, Naoko Yamakawa | 2010-02-09 |
| 7122169 | Positive electrode material and nickel-zinc battery | Kenta Yamamoto, Osamu Takahashi, Kazuo Honda | 2006-10-17 |
| 6908707 | Positive electrode material and nickel-zinc battery | Kenta Yamamoto, Osamu Takahashi, Kazuo Honda | 2005-06-21 |
| 6686091 | Positive electrode material and nickel-zinc battery | Kenta Yamamoto, Osamu Takahashi, Kazuo Honda | 2004-02-03 |
| 6413666 | Battery with a sheathing member to prevent leakage of electrolytic solution | — | 2002-07-02 |
| 5173379 | Battery including a sealing member and a reinforcing member for the sealing member | Yoshinari Ichinose, Shinichi Ando, Kazuhiro Hashimoto | 1992-12-22 |