Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7892364 | Surface modifying jig of engine valve and surface modifying method employing it | Takahiro Yamaguchi, Masanori Kosugi | 2011-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7892364 | Surface modifying jig of engine valve and surface modifying method employing it | Takahiro Yamaguchi, Masanori Kosugi | 2011-02-22 |