Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12365652 | Method for producing ε-caprolactam | Daijiro Tsukamoto, Kenji Kawamura, Katsushige Yamada, Daisuke Yamamoto | 2025-07-22 |
| 11149001 | Method for producing ϵ-caprolactam | Daijiro Tsukamoto, Masateru Ito, Katsushige Yamada, Daisuke Yamamoto, Koji Yamauchi | 2021-10-19 |
| 10364218 | Method of producing epsilon-caprolactam | Daijiro Tsukamoto, Masateru Ito, Katsushige Yamada, Kohei Yamashita, Koji Yamauchi | 2019-07-30 |
| 10196352 | Method for producing epsilon-caprolactam | Masateru Ito, Daijiro Tsukamoto, Kenji Kawamura, Kohei Yamashita, Katsushige Yamada +1 more | 2019-02-05 |
| 10179849 | Polyester resin composition and method for producing the same | Ken Sudo, Eri Yasutake, Koya Kato | 2019-01-15 |
| 9920180 | Polyester resin composition and method for producing same | Koya Kato | 2018-03-20 |