Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10982167 | Viscosity index improver and lubricating oil composition | Yohei IMAIZUMI, Keiko Izumi, Daisuke Matsui | 2021-04-20 |
| 10443013 | Viscosity index improver, method for producing the same and lubricating oil composition | Tadayoshi Ugamura, Keiko Izumi | 2019-10-15 |
| 8603674 | Composition for electrode of nonaqueous electrolyte secondary battery, electrode for nonaqueous electrolyte secondary battery using the same and nonaqueous electrolyte secondary battery | Tadayoshi Tanaka, Hiroshi Minami, Naoki Imachi, Kunihiro Iwai, Daisuke Imai | 2013-12-10 |