Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10640639 | Polymer and asphalt composition | Shigeo Nakajima, Yoshifumi Araki, Takuya Suzuki | 2020-05-05 |
| 10189995 | Asphalt composition | Shigeo Nakajima, Yukari Hori | 2019-01-29 |
| 10138319 | Polymer and asphalt composition | Shigeo Nakajima, Yoshifumi Araki, Nobuaki Kubo, Takuya Suzuki | 2018-11-27 |