Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767486 | Sulfur-based extreme-pressure agent and metalworking fluid | Takafumi Iba, Hiroshi Sakata | 2023-09-26 |
| 11499113 | Lubricating oil composition | Hiroshi Sakata, Takafumi Iba | 2022-11-15 |