Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656642 | Non-aqueous electrolytic solution and lithium secondary battery | Toshikazu Hamamoto, Koji Abe, Tsutomu Takai | 2003-12-02 |
| 6632572 | Lithium secondary battery | Masatoshi Takahashi, Zensaku Yasutake, Koji Abe, Toshikazu Hamamoto | 2003-10-14 |