Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623568 | Ti alloy poppet valve and a method of manufacturing the same | Hiroaki Asanuma | 2003-09-23 |
| 6592683 | Ti alloy surface treatment | Hiroaki Asanuma | 2003-07-15 |
| 6511045 | Ti alloy poppet valve and a method of manufacturing the same | Hiroaki Asanuma | 2003-01-28 |