Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9783757 | Poly(meth)acrylate-based viscosity index improver, lubricant additive and lubricant composition containing viscosity index improver | Shigeki Matsui, Hiromitsu Matsuda, Kazuo Tagawa, Akira Takagi, Ryuichi Ueno | 2017-10-10 |
| 9353328 | Lubricating oil composition | Shigeki Matsui | 2016-05-31 |
| 9353329 | Lubricating oil composition | Akira Yaguchi | 2016-05-31 |
| 8999904 | Lubricant oil composition and method for making the same | Shigeki Matsui, Akira Yaguchi, Reiko Kudo, Teppei Tsujimoto | 2015-04-07 |