Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162046 | Lubricating oil composition for automatic transmission | Ryuji Maruyama, Shinji Saitou, Shouhei HARADA | 2021-11-02 |
| 11130926 | Lubricating oil composition for automatic transmissions | Ryuji Maruyama | 2021-09-28 |
| 11111455 | Lubricating oil composition for automatic transmissions | Ryuji Maruyama | 2021-09-07 |