Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7989107 | Lithium-ion secondary battery | Kenji Nakai, Akinori Tada, Seiichi Sato | 2011-08-02 |
| 7867644 | Secondary battery and secondary battery manufacturing method | Kinya Aota, Kenji Nakai, Akinori Tada | 2011-01-11 |