Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11390825 | Dispersing agent for lubricating oil, method for producing same, and lubricating oil composition | Hiroaki Koshima, Yoriyuki Takashima | 2022-07-19 |
| 11312917 | Mineral base oil, lubricant composition, internal combustion engine, lubricating method of internal combustion engine | Norihiro Kuroda, Hisao Anzai | 2022-04-26 |