Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7971428 | Exhaust gas purification device for internal combustion engine | Hiroyuki Kimura, Kojiro Okada, Kei Shigahara, Michihiro Hata, Kazuhito Kawashima +3 more | 2011-07-05 |
| 7874145 | Emmision control device for internal combustion engine | Kojiro Okada, Kazuma Sanada, Yuji Sato, Hiroshi Tanada, Kouichi Tomida +1 more | 2011-01-25 |