Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660056 | Valve seat for internal combustion engines | Koichiro Hayashi, Hideaki Kawata | 2003-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660056 | Valve seat for internal combustion engines | Koichiro Hayashi, Hideaki Kawata | 2003-12-09 |