Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873462 | Lubricating oil composition | Shuhei Yamamoto, Akihiro Udagawa, Masahiro Yamashita, Yusuke Saito | 2024-01-16 |
| 11655428 | Lubricating oil compositions and lubricating oil viscosity modifiers | Akihiro Udagawa, Noriko Kai, Yuji Tokunaga | 2023-05-23 |
| 11162050 | Lubricating oil composition, viscosity modifier for lubricating oil, and additive composition for lubricating oil | Shuhei Yamamoto, Takayuki UEKUSA, Ikuko Ebisawa, Masahiro Yamashita, Toyoaki Sasaki | 2021-11-02 |