Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7294433 | Closed alkaline storage battery | Tetsuo Nanno, Yoichi Izumi, Munehisa Ikoma | 2007-11-13 |
| 7205745 | Portable power source system | Futoshi Tanigawa | 2007-04-17 |
| 6811920 | Cylindrical lithium ion secondary battery and fabrication method thereof | Naoto Arai | 2004-11-02 |