Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10087392 | Lubricant composition and lubricant oil composition containing same | Kenji Yamamoto | 2018-10-02 |
| 9255237 | Lubricating oil additive composition and method for improving storage stability of lubricating oil additive composition | Yukio Tatsumi, Shinji Iino | 2016-02-09 |
| 8012916 | Phosphorus-molybdenum compound, method for producing same and lubricant additive and lubricant composition containing the compound | Kazuhiro Umehara, Yukio Tatsumi | 2011-09-06 |