Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978602 | Engine exhaust cleaning device | Makoto Ohtake, Junichi Kawashima, Naoya Tsutsumoto, Takao Inoue, Toshimasa Koga | 2005-12-27 |
| 6931842 | Regeneration of diesel particulate filter | Makoto Ohtake, Jun Kawashima, Naoya Tsutsumoto, Munehiro Tabata | 2005-08-23 |