Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8113184 | EGR valve device | Hideyuki Seiyama, Tadashi Iijima, Shuuji Hori, Daisuke Kozuka | 2012-02-14 |
| 7455056 | Valve device | Hideyuki Seiyama, Kouichi Okaya, Tatsuya Iwazaki, Hiroshi Tsuda | 2008-11-25 |