Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10086889 | Roller device and roller shell for track-type work vehicle | — | 2018-10-02 |
| 9902443 | Idler wheel and crawler-type travel device | Minoru Katayama, Kenichi Hisamatsu | 2018-02-27 |