Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7513104 | Diagnostic apparatus for internal combustion engine | Hiroshi Katoh | 2009-04-07 |
| 7444233 | Diagnostic apparatus and diagnostic method for an internal combustion engine | Hiroshi Katoh | 2008-10-28 |
| 6901741 | Diagnosis of deterioration in air/fuel ratio sensor | Hideaki Kobayashi, Masato Kobayashi | 2005-06-07 |