Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569818 | Lubricating oil composition | Morikuni Nakazato, Shigeru Iwamoto | 2003-05-27 |
| 6540128 | Friction stir welding method and apparatus, and welded structure | Hisanori Okamura, Yasuhisa Aono, Kazutaka Okamoto, Kinya Aota, Tomio Odakura +1 more | 2003-04-01 |