Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11618514 | Link assembly and seal assembly | Minoru Katayama, Kenichi Hisamatsu | 2023-04-04 |
| 11059530 | Traveling unit and work vehicle | Kenichi Hisamatsu, Hisao Asada | 2021-07-13 |
| 11008057 | Track link and link mounted part | Kenichi Hisamatsu, Hisao Asada | 2021-05-18 |
| 10717483 | Lug bar, track shoe, and method for producing lug bar | Masayuki Ohishi, Hisao Asada, Kenichi Hisamatsu | 2020-07-21 |
| 9169622 | Hydraulic excavator | Hirotaka Sueyoshi, Hayao YOSHINO | 2015-10-27 |
| 7338138 | Link and producing method of the same | Tatsuo Yamashita | 2008-03-04 |