Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597572 | DC power source unit with battery recharging function | Tomomasa Nishikawa | 2003-07-22 |
| 6566843 | DC power source unit with battery charging function | Takeshi Takeda, Eiji Nakayama, Kazuhiko Funabashi | 2003-05-20 |