Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12338408 | Lubricating oil composition | Yasushi Onumata, Akira Tada, Noriko Ayame | 2025-06-24 |
| RE50064 | Lubricating oil composition | Takahiro Fukumizu, Takatoshi Shinyoshi, Daisuke Tokozakura | 2024-07-30 |
| 12024667 | Cooling liquid composition | Akira Tada, Yasushi Onumata, Noriko Ayame | 2024-07-02 |
| 11555159 | Lubricating oil composition | Yasushi Onumata, Akira Tada, Noriko Ayame | 2023-01-17 |
| 11214755 | Lubricating oil composition | Takahiro Fukumizu, Takatoshi Shinyoshi, Daisuke Tokozakura | 2022-01-04 |