Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4436453 | Machine for and method of hardening soft ground in depths | Yoshinori Kukino, Takumi Fujii | 1984-03-13 |
| 4402630 | Machine for and method of hardening soft ground | Yoshinori Kukino, Takumi Fujii, Kazunori Sugiyama, Takashi Inoue, Mamoru Ogishima | 1983-09-06 |