Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8341937 | Diagnostic apparatus for an exhaust gas purification system of an internal combustion engine, an exhaust gas purification system and a diagnostic method thereof | Sunki I, Kenichi Sato, Kimiyoshi Nishizawa, Kengo Kubo | 2013-01-01 |
| 7891173 | Exhaust gas cleaning apparatus and method thereof | Suki I, Takao Inoue, Kimiyoshi Nishizawa | 2011-02-22 |
| 7559196 | Exhaust system of an internal combustion engine | Takao Inoue, Sunki I, Kimiyoshi Nishizawa | 2009-07-14 |