Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12404409 | Asphalt composition | Norihiro Fukuri | 2025-09-02 |
| 12152149 | Asphalt composition | Hirotaka KASHIWAGI | 2024-11-26 |
| 11958975 | Asphalt composition | Ryoichi Hashimoto, Hirotaka KASHIWAGI | 2024-04-16 |
| 10345728 | Toner for electrophotography | Hideaki Kondo, Kohei Katayama, Kouta Ijichi | 2019-07-09 |
| 10061217 | Electrophotography toner | Shogo Watanabe, Kohei Katayama, Yasuhiro Hidaka | 2018-08-28 |
| 8722297 | Resin binders for toners | Eiji Shirai | 2014-05-13 |
| 7815543 | Creep control device for vehicle | Yoshinori Tanaka, Yoshimichi Tsubata | 2010-10-19 |