Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824923 | Secondary power source having a lithium titanate | Yong Che, Manabu Tsushima | 2004-11-30 |
| 6825441 | Power supply apparatus | Masao Katooka, Kenzo Danjo, Hideo Ishii | 2004-11-30 |
| 6797922 | Power supply apparatus for welder | Masao Katooka, Kenzo Danjo, Hideo Ishii | 2004-09-28 |