Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410109 | Method for producing olefin and olefination reaction catalyst | Yasuteru Kajikawa, Yuuichirou HIRAI, Keisuke Ono, Keiichi Tomishige | 2025-09-09 |
| 12112634 | In-vehicle device, passing-through determination method, and recording medium | — | 2024-10-08 |
| 11547984 | Production methods of catalyst for hydrogenation and diol | Norihiko Nakamura, Keiichi Tomishige, Masazumi Tamura | 2023-01-10 |
| 11040334 | Catalyst for reduction reaction of 3,4-dihydroxytetrahydrofuran, and method for producing 3,4-dihydroxytetrahydrofuran reduced product | Keiichi Tomishige, Masazumi Tamura, Yuuichirou HIRAI, Yasuteru Kajikawa, Keisuke Ono | 2021-06-22 |
| 10751704 | Hydrogenation reaction catalyst for 1,4-anhydroerythritol, method for producing 3-hydroxytetrahydrofuran, and method for producing 1,3-butane diol | Keiichi Tomishige, Yasuteru Kajikawa, Yuuichirou HIRAI | 2020-08-25 |
| 10584092 | Method for producing aromatic nitrile compound and method for producing carbonate ester | Yousuke Shinkai, Hongyu Liu, Hidefumi Harada, Yoshinori Isahaya, Keiichi Tomishige +3 more | 2020-03-10 |