Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569818 | Lubricating oil composition | Shigeru Iwamoto, Satoshi Hirano | 2003-05-27 |
| 6531428 | Low phosphorous engine oil composition and additive compositions | Jiro Magarifuchi, Akihiro Mochizuki, Hiroshi Tanabe | 2003-03-11 |