Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12384349 | Electro-hydraulic actuator and brake device | Masao Umezawa, Takahiro Yasunaga | 2025-08-12 |
| 11815108 | Electro-hydraulic actuator | Yasuhiro Azuma | 2023-11-14 |
| 11173881 | Disc brake device | Yasuhiro Azuma | 2021-11-16 |
| 4303166 | Horizontal slewing crane | George Campbell, Kosaku Ohno | 1981-12-01 |