Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663724 | Molten salt composition for use in manufacturing laminated rings | Hitoshi Imai | 2003-12-16 |
| 6631542 | Method of manufacturing laminated ring and heat treatment apparatus for use in such method | Hitoshi Imai, Hitoshi Karasawa | 2003-10-14 |
| 6550122 | Method of manufacturing laminated ring | Hitoshi Imai, Hitoshi Karasawa | 2003-04-22 |