Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636431 | Symmetrical DC/DC converter | Takahiko Ito | 2003-10-21 |
| 6538414 | Electric energy storage device with cell energy control, and method of controlling cell energy | Kikuo Tsuruga, Akio Hasebe, Kazuya Mori, Takahiko Ito | 2003-03-25 |