Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11767486 | Sulfur-based extreme-pressure agent and metalworking fluid | Shuujirou Ootsuki, Hiroshi Sakata | 2023-09-26 |
| 11499113 | Lubricating oil composition | Hiroshi Sakata, Shuujirou Ootsuki | 2022-11-15 |
| 10487285 | Method for producing dialkyl polysulfide, dialkyl polysulfide, extreme-pressure additive and lubricating fluid composition | Hiroshi Sakata | 2019-11-26 |
| 10131860 | Dialkyl polysulfide, process for preparing dialkyl polysulfide, extreme pressure additive, and lubricating fluid composition | Hiroshi Sakata | 2018-11-20 |