Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247523 | Exhaust gas heat exchanger | Kazuhiro Shibagaki, Takaki Okochi, Katsunori Uchimura | 2001-06-19 |
| 5806310 | Exhaust purification apparatus | Kiyonori Sekiguchi, Yoshiyuki Ito, Shinya Hirota, Masahito Shibata | 1998-09-15 |