Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803149 | Non-aqueous electrolytic solution secondary battery | Kenji Nakai, Yoshimasa Koishikawa, Kensuke Hironaka | 2004-10-12 |
| 6706446 | Non-aqueous electrolytic solution secondary battery | Kenji Nakai, Yoshimasa Koishikawa, Yuichi Takatsuka, Kensuke Hironaka, Takeshi Nakano | 2004-03-16 |