Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6000641 | Method of crushing and mixing soil and machine therefor | Yasuhiro Yoshida, Taneaki Fujino | 1999-12-14 |
| 5988937 | Crawler type soil improving machine | Yasuhiro Yoshida, Taneaki Fujino | 1999-11-23 |