Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6751949 | Exhaust emission control device of internal-combustion engine | Yasuki Tamura | 2004-06-22 |
| 6729123 | Exhaust purification device for intracylindrical injection-type spark-ignition internal combustion engine | Yasuki Tamura | 2004-05-04 |
| 6718756 | Exhaust gas purifier for use in internal combustion engine | Kojiro Okada, Osamu Nakayama, Yasuki Tamura | 2004-04-13 |
| 6672051 | Exhaust emission purifying device for internal combustion engine | Yasuki Tamura, Takuya Okamoto, Osamu Nakayama | 2004-01-06 |