Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811920 | Cylindrical lithium ion secondary battery and fabrication method thereof | Shinji Murashige | 2004-11-02 |
| 6680146 | Electrode plate unit and battery | Shinsuke Fukuda, Noriyuki Fujioka, Shinji Hamada | 2004-01-20 |