Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10407642 | Lubricant composition | Keiichi Narita | 2019-09-10 |
| 9624453 | Lubricating oil composition and automotive transmission oil using same | Yoshitaka Tamoto, Toshihiko Ichihashi | 2017-04-18 |