Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6833784 | Electric vehicle | Hiroshi Ishii, Takashi Aoki | 2004-12-21 |
| 6741065 | Electric device and method for charging and discharging battery unit of the same | Hiroshi Ishii, Takashi Aoki | 2004-05-25 |