Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826903 | Exhaust gas recirculation system having cooler | Shigeto Yahata, Makoto Saito, Masumi Kinugawa, Tsukasa Kuboshima | 2004-12-07 |
| 6756904 | Device for purifying exhaust gas of engines | Masumi Kinugawa, Tatsuya Fujita | 2004-06-29 |
| 6735941 | Exhaust gas purification system having particulate filter | Makoto Saito, Shigeto Yahata, Masumi Kinugawa, Tsukasa Kuboshima | 2004-05-18 |